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                宏源棋牌 > 技术园地 > 文件系统 > 正文

                GlusterFS分布式文件系统学习之 简介篇

                2014-03-02 12:22来源:中国存储网
                导读:GlusterFS (Gluster File System) 是一个开源的分布式文件系统,GlusterFS借助TCP/IP或InfiniBand RDMA网络将物理分布的存储资源聚集在一起,使用单一全局命名空间来管理数据。GlusterFS基于可堆叠的用户空间设计,可为各种不同的数据负载提供优异的性能。

                1.GlusterFS简介

                GlusterFS (Gluster File System) 是一个开源的分布式文件系统,主要由 Z RESEARCH 公司负责开发,官方网站地址:http://www.gluster.org/,目前最新版本是GlusterFS 3.5.1宏源棋牌,下载地址:http://download.gluster.org/pub/gluster/glusterfs/3.5/3.5.1/。

                GlusterFSSHIScale-OutCUNCHUJIEJUEFANGANGlusterDEHEXIN,JUYOUQIANGDADEHENGXIANGKUOZHANNENGLI,TONGGUOKUOZHANNENGGOUZHICHISHUPBCUNCHURONGLIANGHECHULISHUQIANKEHUDUAN。GlusterFSJIEZHUTCP/IPHUOInfiniBand RDMAWANGLUOJIANGWULIFENBUDECUNCHUZIYUANJUJIZAIYIQI,SHIYONGDANYIQUANJUMINGMINGKONGJIANLAIGUANLISHUJU。GlusterFSJIYUKEDUIDIEDEYONGHUKONGJIANSHEJI,KEWEIGEZHONGBUTONGDESHUJUFUZAITIGONGYOUYIDEXINGNENG。

                GlusterFS分布式文件系统学习之 简介篇

                TU1 GlusterFSTONGYONGGUAZAIDIAN

                GlusterFSZHICHIYUNXINGZAIRENHEBIAOZHUNIPWANGLUOSHANGBIAOZHUNYINGYONGCHENGXUDEBIAOZHUNKEHUDUAN,RUTU2SUOSHI,YONGHUKEYIZAIQUANJUTONGYIDEMINGMINGKONGJIANZHONGSHIYONGNFS/CIFSDENGBIAOZHUNXIEYILAIFANGWENYINGYONGSHUJU。GlusterFSSHIDEYONGHUKEBAITUOYUANYOUDEDULI、GAOCHENGBENDEFENGBICUNCHUXITONG,NENGGOULIYONGPUTONGLIANJIADECUNCHUSHEBEILAIBUSHUKEJIZHONGGUANLI、HENGXIANGKUOZHAN、XUNIHUADECUNCHUCHI,CUNCHURONGLIANGKEKUOZHANZHITB/PBJI。

                GlusterFSZHUYAOTEZHENGRUXIA:

                * 扩展性和高性能

                GlusterFSLIYONGSHUANGZHONGTEXINGLAITIGONGJITBZHISHUPBDEGAOKUOZHANCUNCHUJIEJUEFANGAN。Scale-OutJIAGOUYUNXUTONGGUOJIANDANDIZENGJIAZIYUANLAITIGAOCUNCHURONGLIANGHEXINGNENG,CIPAN、JISUANHEI/OZIYUANDOUKEYIDULIZENGJIA,ZHICHI10GbEHEInfiniBandDENGGAOSUWANGLUOHULIAN。GlusterDANXINGHAXI(Elastic Hash)JIECHULEGlusterFSDUIYUANSHUJUFUWUQIDEXUQIU,XIAOCHULEDANDIANGUZHANGHEXINGNENGPINGJING,ZHENZHENGSHIXIANLEBINGXINGHUASHUJUFANGWEN。

                * 高可用性

                GlusterFSKEYIDUIWENJIANJINXINGZIDONGFUZHI,RUJINGXIANGHUODUOCIFUZHI,CONGERQUEBAOSHUJUZONGSHIKEYIFANGWEN,SHENZHISHIZAIYINGJIANGUZHANGDEQINGKUANGXIAYENENGZHENGCHANGFANGWEN。ZIWOXIUFUGONGNENGNENGGOUBASHUJUHUIFUDAOZHENGQUEDEZHUANGTAI,ERQIEXIUFUSHIYIZENGLIANGDEFANGSHIZAIHOUTAIZHIXING,JIHUBUHUICHANSHENGXINGNENGFUZAI。GlusterFSMEIYOUSHEJIZIJIDESIYOUSHUJUWENJIANGESHI,ERSHICAIYONGCAOZUOXITONGZHONGZHULIUBIAOZHUNDECIPANWENJIANXITONG(RUEXT3、ZFS)LAICUNCHUWENJIAN,YINCISHUJUKEYISHIYONGGEZHONGBIAOZHUNGONGJUJINXINGFUZHIHEFANGWEN。

                * 全局统一命名空间

                宏源棋牌QUANJUTONGYIMINGMINGKONGJIANJIANGCIPANHENEICUNZIYUANJUJICHENGYIGEDANYIDEXUNICUNCHUCHI,DUISHANGCENGYONGHUHEYINGYONGPINGBILEDICENGDEWULIYINGJIAN。CUNCHUZIYUANKEYIGENJUXUYAOZAIXUNICUNCHUCHIZHONGJINXINGDANXINGKUOZHAN,BIRUKUORONGHUOSHOUSUO。DANGCUNCHUXUNIJIYINGXIANGSHI,CUNCHUDEXUNIYINGXIANGWENJIANMEIYOUSHULIANGXIANZHI,CHENGQIANXUNIJIJUNTONGGUODANYIGUAZAIDIANJINXINGSHUJUGONGXIANG。XUNIJII/OKEZAIMINGMINGKONGJIANNEIDESUOYOUFUWUQISHANGZIDONGJINXINGFUZAIJUNHENG,XIAOCHULESANHUANJINGZHONGJINGCHANGFASHENGDEFANGWENREDIANHEXINGNENGPINGJINGWENTI。

                * 弹性哈希算法

                宏源棋牌GlusterFSCAIYONGDANXINGHAXISUANFAZAICUNCHUCHIZHONGDINGWEISHUJU,ERBUSHICAIYONGJIZHONGSHIHUOFENBUSHIYUANSHUJUFUWUQISUOYIN。ZAIQITADEScale-OutCUNCHUXITONGZHONG,YUANSHUJUFUWUQITONGCHANGHUIDAOZHII/OXINGNENGPINGJINGHEDANDIANGUZHANGWENTI。GlusterFSZHONG,SUOYOUZAIScale-OutCUNCHUPEIZHIZHONGDECUNCHUXITONGDOUKEYIZHINENGDIDINGWEIRENYISHUJUFENPIAN,BUXUYAOCHAKANSUOYINHUOZHEXIANGQITAFUWUQICHAXUN。ZHEIZHONGSHEJIJIZHIWANQUANBINGXINGHUALESHUJUFANGWEN,SHIXIANLEZHENZHENGDEXIANXINGXINGNENGKUOZHAN。

                * 弹性卷管理

                SHUJUCHUCUNZAILUOJIJUANZHONG,LUOJIJUANKEYICONGXUNIHUADEWULICUNCHUCHIJINXINGDULILUOJIHUAFENERDEDAO。CUNCHUFUWUQIKEYIZAIXIANJINXINGZENGJIAHEYICHU,BUHUIDAOZHIYINGYONGZHONGDUAN。LUOJIJUANKEYIZAISUOYOUPEIZHIFUWUQIZHONGZENGZHANGHESUOJIAN,KEYIZAIBUTONGFUWUQIQIANYIJINXINGRONGLIANGJUNHENG,HUOZHEZENGJIAHEYICHUXITONG,ZHEIXIECAOZUODOUKEZAIXIANJINXING。WENJIANXITONGPEIZHIGENGGAIYEKEYISHISHIZAIXIANJINXINGBINGYINGYONG,CONGERKEYISHIYINGGONGZUOFUZAITIAOJIANBIANHUAHUOZAIXIANXINGNENGDIAOYOU。

                * 基于标准协议

                宏源棋牌GlusterCUNCHUFUWUZHICHINFS, CIFS, HTTP, FTPYIJIGlusterYUANSHENGXIEYI,WANQUANYUPOSIXBIAOZHUNJIANRONG。XIANYOUYINGYONGCHENGXUBUXUYAOZUORENHEXIUGAIHUOSHIYONGZHUANYONGAPI,JIUKEYIDUIGlusterZHONGDESHUJUJINXINGFANGWEN。ZHEIZAIGONGYOUYUNHUANJINGZHONGBUSHUGlusterSHIFEICHANGYOUYONG,GlusterDUIYUNFUWUTIGONGSHANGZHUANYONGAPIJINXINGCHOUXIANG,RANHOUTIGONGBIAOZHUNPOSIXJIEKOU。

                2.设计目标

                GlusterFSDESHEJISIXIANGXIANZHUQUBIEYOUXIANYOUBINGXING/JIQUN/FENBUSHIWENJIANXITONG。RUGUOGlusterFSZAISHEJISHANGMEIYOUBENZHIXINGDETUPO,NANYIZAIYULustre、PVFS2、CephDENGDEJINGZHENGZHONGZHANJUYOUSHI,GENGBIETIYUGPFS、StorNext、ISILON、IBRIXDENGJUYOUDUONIANJISHUCHENDIANHESHICHANGJILEIDESHANGYONGWENJIANXITONGJINGZHENG。QIHEXINSHEJIMUBIAOBAOKUORUXIASANGE:

                * 弹性存储系统(Elasticity)

                CUNCHUXITONGJUYOUDANXINGNENGLI,YIWEIZHEQIYEKEYIGENJUYEWUXUYAOLINGHUODIZENGJIAHUOSUOJIANSHUJUCUNCHUYIJIZENGSHANCUNCHUCHIZHONGDEZIYUAN,ERBUXUYAOZHONGDUANXITONGYUNXING。GlusterFSSHEJIMUBIAOZHIYIJIUSHIDANXING,YUNXUDONGTAIZENGSHANSHUJUJUAN、KUOZHANHUOSUOJIANSHUJUJUAN、ZENGSHANCUNCHUFUWUQIDENG,BUYINGXIANGXITONGZHENGCHANGYUNXINGHEYEWUFUWU。GlusterFSZAOQIBANBENZHONGDANXINGBUZU,BUFENGUANLIGONGZUOXUYAOZHONGDUANFUWU,MUQIANZUIXINDE3.1.XBANBENYIJINGDANXINGSHIZU,NENGGOUMANZUDUICUNCHUXITONGDANXINGYAOQIUGAODEYINGYONGXUQIU,YOUQISHIDUIYUNCUNCHUFUWUXITONGERYANYIYIGENGDA。GlusterFSZHUYAOTONGGUOCUNCHUXUNIHUAJISHUHELUOJIJUANGUANLILAISHIXIANZHEIYISHEJIMUBIAO。

                * 线性横向扩展(Linear Scale-Out)

                宏源棋牌XIANXINGKUOZHANDUIYUCUNCHUXITONGERYANSHIFEICHANGNANYISHIXIANDE,TONGCHANGXITONGGUIMOKUOZHANYUXINGNENGTISHENGZHIJIANSHILOGDUISHUQUXIANGUANXI,YINWEITONGSHIHUICHANSHENGXIANGYINGFUZAIERXIAOHAOLEBUFENXINGNENGDETISHENG。XIANZAIDEHENDUOBINGXING/JIQUN/FENBUSHIWENJIANXITONGDOUJUHENGAODEKUOZHANNENGLI,LusterCUNCHUJIEDIANKEYIDADAO1000GEYISHANG,KEHUDUANSHULIANGNENGGOUDADAO25000YISHANG,ZHEIGEKUOZHANNENGLISHIFEICHANGQIANGDADE,DANSHILustreYEBUSHIXIANXINGKUOZHANDE。

                宏源棋牌ZONGXIANGKUOZHAN(Scale-Up)ZHIZAITIGAODANGEJIEDIANDECUNCHURONGLIANGHUOXINGNENG,WANGWANGCUNZAILILUNSHANGHUOWULISHANGDEGEZHONGXIANZHI,ERWUFAMANZUCUNCHUXUQIU。HENGXIANGKUOZHAN(Scale-Out)TONGGUOZENGJIACUNCHUJIEDIANLAITISHENGZHENGGEXITONGDERONGLIANGHUOXINGNENG,ZHEIYIKUOZHANJIZHISHIMUQIANDECUNCHUJISHUREDIAN,NENGYOUXIAOYINGDUIRONGLIANG、XINGNENGDENGCUNCHUXUQIU。MUQIANDEBINGXING/JIQUN/FENBUSHIWENJIANXITONGDADUODOUJUBEIHENGXIANGKUOZHANNENGLI。

                宏源棋牌GlusterFSSHIXIANXINGHENGXIANGKUOZHANJIAGOU,TATONGGUOHENGXIANGKUOZHANCUNCHUJIEDIANJIKEYIHUODEXIANXINGDECUNCHURONGLIANGHEXINGNENGDETISHENG。YINCI,JIEHEZONGXIANGKUOZHANGlusterFSKEYIHUODEDUOWEIKUOZHANNENGLI,ZENGJIAMEIGEJIEDIANDECIPANKEZENGJIACUNCHURONGLIANG,ZENGJIACUNCHUJIEDIANKEYITIGAOXINGNENG,CONGERJIANGGENGDUOCIPAN、NEICUN、I/OZIYUANJUJICHENGGENGDARONGLIANG、GENGGAOXINGNENGDEXUNICUNCHUCHI。GlusterFSLIYONGSANZHONGJIBENJISHULAIHUODEXIANXINGHENGXIANGKUOZHANNENGLI:

                1)、XIAOCHUYUANSHUJUFUWU

                宏源棋牌2)、GAOXIAOSHUJUFENBU,HUODEKUOZHANXINGHEKEKAOXING

                3)、TONGGUOWANQUANFENBUSHIJIAGOUDEBINGXINGHUAHUODEXINGNENGDEZUIDAHUA

                * 高可靠性(Reliability)

                YUGFS(Google File System)LEISI,GlusterFSKEYIGOUJIANZAIPUTONGDEFUWUQIHECUNCHUSHEBEIZHISHANG,YINCIKEKAOXINGXIANDEYOUWEIGUANJIAN。GlusterFSCONGSHEJIZHICHUJIUJIANGKEKAOXINGNARUHEXINSHEJI,CAIYONGLEDUOZHONGJISHULAISHIXIANZHEIYISHEJIMUBIAO。SHOUXIAN,TAJIASHEGUZHANGSHIZHENGCHANGSHIJIAN,BAOKUOYINGJIAN、CIPAN、WANGLUOGUZHANGYIJIGUANLIYUANWUCAOZUOZAOCHENGDESHUJUSUNHUAIDENG。GlusterFSSHEJIZHICHIZIDONGFUZHIHEZIDONGXIUFUGONGNENGLAIBAOZHENGSHUJUKEKAOXING,BUXUYAOGUANLIYUANDEGANYU。QICI,GlusterFSLIYONGLEDICENGEXT3/ZFSDENGCIPANWENJIANXITONGDERIZHIGONGNENGLAITIGONGYIDINGDESHUJUKEKAOXING,ERMEIYOUZIJIZHONGXINFAMINGLUNZI。ZAICI,GlusterFSSHIWUYUANSHUJUFUWUQISHEJI,BUXUYAOYUANSHUJUDETONGBUHUOZHEYIZHIXINGWEIHU,HENDACHENGDUSHANGJIANGDILEXITONGFUZAXING,BUJINTIGAOLEXINGNENG,HAIDADATIGAOLEXITONGKEKAOXING。

                3.技术特点

                GlusterFSZAIJISHUSHIXIANSHANGYUCHUANTONGCUNCHUXITONGHUOXIANYOUQITAFENBUSHIWENJIANXITONGYOUXIANZHUBUTONGZHICHU,ZHUYAOTIXIANZAIRUXIAJIGEFANGMIAN。

                * 完全软件实现(Software Only)

                GlusterFSRENWEICUNCHUSHIRUANJIANWENTI,BUNENGGOUBAYONGHUJUXIANYUSHIYONGTEDINGDEGONGYINGSHANGHUOYINGJIANPEIZHILAIJIEJUE。GlusterFSCAIYONGKAIFANGSHISHEJI,GUANGFANZHICHIGONGYEBIAOZHUNDECUNCHU、WANGLUOHEJISUANJISHEBEI,ERFEIYUDINGZHIHUADEZHUANYONGYINGJIANSHEBEIKUNBANG。DUIYUSHANGYEKEHU,GlusterFSKEYIYIXUNIZHUANGZHIDEXINGSHIJIAOFU,YEKEYIYUXUNIJIRONGQIDABAO,HUOZHESHIGONGYOUYUNZHONGBUSHUDEYINGXIANG。KAIYUANSHEQUZHONG,GlusterFSBEIDALIANGBUSHUZAIJIYULIANJIAXIANZHIYINGJIANDEGEZHONGCAOZUOXITONGSHANG,GOUCHENGJIZHONGTONGYIDEXUNICUNCHUZIYUANCHI。JIANERYANZHI,GlusterFSSHIKAIFANGDEQUANRUANJIANSHIXIAN,WANQUANDULIYUYINGJIANHECAOZUOXITONG。

                * 完整的存储操作系统栈(Complete Storage Operating System Stack)

                GlusterFSBUJINTIGONGLEYIGEFENBUSHIWENJIANXITONG,ERQIEHAITIGONGLEXUDUOQITAZHONGYAODEFENBUSHIGONGNENG,BIRUFENBUSHINEICUNGUANLI、I/ODIAODU、RUANRAIDHEZIWOXIUFUDENG。GlusterFSJIQULEWEINEIHEJIAGOUDEJINGYANJIAOXUN,JIEJIANLEGNU/HurdCAOZUOXITONGDESHEJISIXIANG,ZAIYONGHUKONGJIANSHIXIANLEWANZHENGDECUNCHUCAOZUOXITONGZHAN。

                * 用户空间实现(User Space)

                YUCHUANTONGDEWENJIANXITONGBUTONG,GlusterFSZAIYONGHUKONGJIANSHIXIAN,ZHEISHIDEQIANZHUANGHESHENGJITEBIEJIANBIAN。LINGWAI,ZHEIYEJIDAJIANGDILEPUTONGYONGHUJIYUYUANMAXIUGAIGlusterFSDEMENJIAN,JINJINXUYAOTONGYONGDECCHENGXUSHEJIJINENG,ERBUXUYAOTEBIEDENEIHEBIANCHENGJINGYAN。

                * 模块化堆栈式架构(Modular Stackable Architecture)

                宏源棋牌GlusterFSCAIYONGMOKUAIHUA、DUIZHANSHIDEJIAGOU,KETONGGUOLINGHUODEPEIZHIZHICHIGAODUDINGZHIHUADEYINGYONGHUANJING,BIRUDAWENJIANCUNCHU、HAILIANGXIAOWENJIANCUNCHU、YUNCUNCHU、DUOCHUANSHUXIEYIYINGYONGDENG。MEIGEGONGNENGYIMOKUAIXINGSHISHIXIAN,RANHOUYIJIMUFANGSHIJINXINGJIANDANDEZUHE,JIKESHIXIANFUZADEGONGNENG。BIRU,ReplicateMOKUAIKESHIXIANRAID1,StripeMOKUAIKESHIXIANRAID0,TONGGUOLIANGZHEDEZUHEKESHIXIANRAID10HERAID01,TONGSHIHUODEGAOXINGNENGHEGAOKEKAOXING。

                * 原始数据格式存储(Data Stored in Native Formats)

                GlusterFSYIYUANSHISHUJUGESHI(RUEXT3、EXT4、XFS、ZFS)CHUCUNSHUJU,BINGSHIXIANDUOZHONGSHUJUZIDONGXIUFUJIZHI。YINCI,XITONGJIJUDANXING,JISHILIXIANQINGXINGXIAWENJIANYEKEYITONGGUOQITABIAOZHUNGONGJUJINXINGFANGWEN。RUGUOYONGHUXUYAOCONGGlusterFSZHONGQIANYISHUJU,BUXUYAOZUORENHEXIUGAIRENGRANKEYIWANQUANSHIYONGZHEIXIESHUJU。

                * 无元数据服务设计(No Metadata with the Elastic Hash Algorithm)(详细可参考资料)

                宏源棋牌DUIScale-OutCUNCHUXITONGERYAN,ZUIDADETIAOZHANZHIYIJIUSHIJILUSHUJULUOJIYUWULIWEIZHIDEYINGXIANGGUANXI,JISHUJUYUANSHUJU,KENENGHAIBAOKUOZHURUSHUXINGHEFANGWENQUANXIANDENGXINXI。CHUANTONGFENBUSHICUNCHUXITONGSHIYONGJIZHONGSHIHUOFENBUSHIYUANSHUJUFUWULAIWEIHUYUANSHUJU,JIZHONGSHIYUANSHUJUFUWUHUIDAOZHIDANDIANGUZHANGHEXINGNENGPINGJINGWENTI,ERFENBUSHIYUANSHUJUFUWUCUNZAIXINGNENGFUZAIHEYUANSHUJUTONGBUYIZHIXINGWENTI。TEBIESHIDUIYUHAILIANGXIAOWENJIANDEYINGYONG,YUANSHUJUWENTISHIGEFEICHANGDADETIAOZHAN。

                GlusterFSDUTEDICAIYONGWUYUANSHUJUFUWUDESHEJI,QUERDAIZHISHIYONGSUANFALAIDINGWEIWENJIAN,YUANSHUJUHESHUJUMEIYOUFENLIERSHIYIQICUNCHU。JIQUNZHONGDESUOYOUCUNCHUXITONGFUWUQIDOUKEYIZHINENGDIDUIWENJIANSHUJUFENPIANJINXINGDINGWEI,JINJINGENJUWENJIANMINGHELUJINGBINGYUNYONGSUANFAJIKE,ERBUXUYAOCHAXUNSUOYINHUOZHEQITAFUWUQI。ZHEISHIDESHUJUFANGWENWANQUANBINGXINGHUA,CONGERSHIXIANZHENZHENGDEXIANXINGXINGNENGKUOZHAN。WUYUANSHUJUFUWUQIJIDATIGAOLEGlusterFSDEXINGNENG、KEKAOXINGHEWENDINGXING。

                4.总体架构与设计

                GlusterFS分布式文件系统学习之 简介篇

                TU2 GlusterFSJIAGOUHEZUCHENG

                宏源棋牌GlusterFSZONGTIJIAGOUYUZUCHENGBUFENRUTU2SUOSHI,TAZHUYAOYOUCUNCHUFUWUQI(Brick Server)、KEHUDUANYIJINFS/SambaCUNCHUWANGGUANZUCHENG。BUNANFAXIAN,GlusterFSJIAGOUZHONGMEIYOUYUANSHUJUFUWUQIZUJIAN,ZHEISHIQIZUIDADESHEJIZHEIDIAN,DUIYUTISHENGZHENGGEXITONGDEXINGNENG、KEKAOXINGHEWENDINGXINGDOUYOUZHEJUEDINGXINGDEYIYI。GlusterFSZHICHITCP/IPHEInfiniBand RDMAGAOSUWANGLUOHULIAN,KEHUDUANKETONGGUOYUANSHENGGlusterfsXIEYIFANGWENSHUJU,QITAMEIYOUYUNXINGGlusterFSKEHUDUANDEZHONGDUANKETONGGUONFS/CIFSBIAOZHUNXIEYITONGGUOCUNCHUWANGGUANFANGWENSHUJU。

                CUNCHUFUWUQIZHUYAOTIGONGJIBENDESHUJUCUNCHUGONGNENG,ZUIZHONGDEWENJIANSHUJUTONGGUOTONGYIDEDIAODUCELVEFENBUZAIBUTONGDECUNCHUFUWUQISHANG。TAMENSHANGMIANYUNXINGZHEGlusterfsdJINXING,FUZECHULILAIZIQITAZUJIANDESHUJUFUWUQINGQIU。RUQIANSUOSHU,SHUJUYIYUANSHIGESHIZHIJIECUNCHUZAIFUWUQIDEBENDIWENJIANXITONGSHANG,RUEXT3、EXT4、XFS、ZFSDENG,YUNXINGFUWUSHIZHIDINGSHUJUCUNCHULUJING。DUOGECUNCHUFUWUQIKEYITONGGUOKEHUDUANHUOCUNCHUWANGGUANSHANGDEJUANGUANLIQIZUCHENGJIQUN,RUStripe(RAID0)、Replicate(RAID1)HEDHT(FENBUSHIHash)CUNCHUJIQUN,YEKELIYONGQIANTAOZUHEGOUCHENGGENGJIAFUZADEJIQUN,RURAID10。

                宏源棋牌YOUYUMEIYOULEYUANSHUJUFUWUQI,KEHUDUANCHENGDANLEGENGDUODEGONGNENG,BAOKUOSHUJUJUANGUANLI、I/ODIAODU、WENJIANDINGWEI、SHUJUHUANCUNDENGGONGNENG。KEHUDUANSHANGYUNXINGGlusterfsJINCHENG,TASHIJISHIGlusterfsdDEFUHAOLIANJIE,LIYONGFUSE(File system in User Space)MOKUAIJIANGGlusterFSGUAZAIDAOBENDIWENJIANXITONGZHISHANG,SHIXIANPOSIXJIANRONGDEFANGSHILAIFANGWENXITONGSHUJU。ZAIZUIXINDE3.1.XBANBENZHONG,KEHUDUANBUZAIXUYAODULIWEIHUJUANPEIZHIXINXI,GAICHENGZIDONGCONGYUNXINGZAIWANGGUANSHANGDEglusterdDANXINGJUANGUANLIFUWUJINXINGHUOQUHEGENGXIN,JIDAJIANHUALEJUANGUANLI。GlusterFSKEHUDUANFUZAIXIANGDUICHUANTONGFENBUSHIWENJIANXITONGYAOGAO,BAOKUOCPUZHANYONGLVHENEICUNZHANYONG。

                宏源棋牌GlusterFSCUNCHUWANGGUANTIGONGDANXINGJUANGUANLIHENFS/CIFSFANGWENDAILIGONGNENG,QISHANGYUNXINGGlusterdHEGlusterfsJINCHENG,LIANGZHEDOUSHIGlusterfsdFUHAOLIANJIE。JUANGUANLIQIFUZELUOJIJUANDECHUANGJIAN、SHANCHU、RONGLIANGKUOZHANYUSUOJIAN、RONGLIANGPINGHUADENGGONGNENG,BINGFUZEXIANGKEHUDUANTIGONGLUOJIJUANXINXIJIZHUDONGGENGXINTONGZHIGONGNENGDENG。GlusterFS 3.1.XSHIXIANLELUOJIJUANDEDANXINGHEZIDONGHUAGUANLI,BUXUYAOZHONGDUANSHUJUFUWUHUOSHANGCENGYINGYONGYEWU。DUIYUWindowsKEHUDUANHUOMEIYOUANZHUANGGlusterFSDEKEHUDUAN,XUYAOTONGGUONFS/CIFSDAILIWANGGUANLAIFANGWEN,ZHEISHIWANGGUANBEIPEIZHICHENGNFSHUOSambaFUWUQI。XIANGDUIYUANSHENGKEHUDUAN,WANGGUANZAIXINGNENGSHANGYAOSHOUDAONFS/SambaDEZHIYUE。

                GlusterFS分布式文件系统学习之 简介篇

                宏源棋牌TU3 GlusterFSMOKUAIHUADUIZHANSHISHEJI

                宏源棋牌GlusterFSSHIMOKUAIHUADUIZHANSHIDEJIAGOUSHEJI,RUTU3SUOSHI。MOKUAICHENGWEITranslator,SHIGlusterFSTIGONGDEYIZHONGQIANGDAJIZHI,JIEZHUZHEIZHONGLIANGHAODINGYIDEJIEKOUKEYIGAOXIAOJIANBIANDIKUOZHANWENJIANXITONGDEGONGNENG。FUWUDUANYUKEHUDUANMOKUAIJIEKOUSHIJIANRONGDE,TONGYIGEtranslatorKETONGSHIZAILIANGBIANJIAZAI。MEIGEtranslatorDOUSHISODONGTAIKU,YUNXINGSHIGENJUPEIZHIDONGTAIJIAZAI。MEIGEMOKUAISHIXIANTEDINGJIBENGONGNENG,GlusterFSZHONGSUOYOUDEGONGNENGDOUSHITONGGUOtranslatorSHIXIAN,BIRUCluster, Storage, Performance, Protocol, FeaturesDENG,JIBENJIANDANDEMOKUAIKEYITONGGUODUIZHANSHIDEZUHELAISHIXIANFUZADEGONGNENG。ZHEIYISHEJISIXIANGJIEJIANLEGNU/HurdWEINEIHEDEXUNIWENJIANXITONGSHEJI,KEYIBADUIWAIBUXITONGDEFANGWENZHUANHUANCHENGMUBIAOXITONGDESHIDANGDIAOYONG。DABUFENMOKUAIDOUYUNXINGZAIKEHUDUAN,BIRUHECHENGQI、I/ODIAODUQIHEXINGNENGYOUHUADENG,FUWUDUANXIANGDUIJIANDANXUDUO。KEHUDUANHECUNCHUFUWUQIJUNYOUZIJIDECUNCHUZHAN,GOUCHENGLEYIKETranslatorGONGNENGSHU,YINGYONGLERUOGANMOKUAI。MOKUAIHUAHEDUIZHANSHIDEJIAGOUSHEJI,JIDAJIANGDILEXITONGSHEJIFUZAXING,JIANHUALEXITONGDESHIXIAN、SHENGJIYIJIXITONGWEIHU。

                5.弹性哈希算法

                宏源棋牌DUIYUFENBUSHIXITONGERYAN,YUANSHUJUCHULISHIJUEDINGXITONGKUOZHANXING、XINGNENGYIJIWENDINGXINGDEGUANJIAN。GlusterFSLINGPIXIJING,CHEDIBINGQILEYUANSHUJUFUWU,SHIYONGDANXINGHAXISUANFADAITICHUANTONGFENBUSHIWENJIANXITONGZHONGDEJIZHONGHUOFENBUSHIYUANSHUJUFUWU。ZHEIGENBENXINGJIEJUELEYUANSHUJUZHEIYINANTI,CONGERHUODELEJIEJINXIANXINGDEGAOKUOZHANXING,TONGSHIYETIGAOLEXITONGXINGNENGHEKEKAOXING。GlusterFSSHIYONGSUANFAJINXINGSHUJUDINGWEI,JIQUNZHONGDERENHEFUWUQIHEKEHUDUANZHIXUGENJULUJINGHEWENJIANMINGJIUKEYIDUISHUJUJINXINGDINGWEIHEDUXIEFANGWEN。HUANJUHUASHUO,GlusterFSBUXUYAOJIANGYUANSHUJUYUSHUJUJINXINGFENLI,YINWEIWENJIANDINGWEIKEDULIBINGXINGHUAJINXING。GlusterFSZHONGSHUJUFANGWENLIUCHENGRUXIA:

                宏源棋牌1、JISUANhashZHI,SHURUCANSHUWEIWENJIANLUJINGHEWENJIANMING;

                2、GENJUhashZHIZAIJIQUNZHONGXUANZEZIJUAN(CUNCHUFUWUQI),JINXINGWENJIANDINGWEI;

                3、DUISUOXUANZEDEZIJUANJINXINGSHUJUFANGWEN。

                GlusterFSMUQIANSHIYONGDavies-MeyerSUANFAJISUANWENJIANMINGhashZHI,HUODEYIGE32WEIZHENGSHU。Davies-MeyerSUANFAJUYOUFEICHANGHAODEhashFENBUXING,JISUANXIAOLVHENGAO。JIASHELUOJIJUANZHONGDECUNCHUFUWUQIYOUNGE,ZE32WEIZHENGSHUKONGJIANBEIPINGJUNHUAFENWEINGELIANXUZIKONGJIAN,MEIGEKONGJIANFENBIEYINGSHEDAOYIGECUNCHUFUWUQI。ZHEIYANG,JISUANDEDAODE32WEIhashZHIJIUHUIBEITOUSHEDAOYIGECUNCHUFUWUQI,JIWOMENYAOXUANZEDEZIJUAN。NANDAOZHENSHIRUCIJIANDAN?XIANZAIRANGWOMENLAIKAOLVYIXIACUNCHUJIEDIANJIARUHESHANCHU、WENJIANGAIMINGDENGQINGKUANG,GlusterFSRUHEJIEJUEZHEIXIEWENTIERJUBEIDANXINGDENI?

                宏源棋牌LUOJIJUANZHONGJIARUYIGEXINCUNCHUJIEDIAN,RUGUOBUZUOQITARENHECHULI,hashZHIYINGSHEKONGJIANJIANGHUIFASHENGBIANHUA,XIANYOUDEWENJIANMULUKENENGHUIBEIZHONGXINDINGWEIDAOQITADECUNCHUFUWUQISHANG,CONGERDAOZHIDINGWEISHIBAI。JIEJUEWENTIDEFANGFASHIDUIWENJIANMULUJINXINGZHONGXINFENBU,BAWENJIANYIDONGDAOZHENGQUEDECUNCHUFUWUQISHANGQU,DANZHEIDADAJIAZHONGLEXITONGFUZAI,YOUQISHIDUIYUYIJINGCUNCHUDALIANGDESHUJUDEHAILIANGCUNCHUXITONGLAISHUOXIANRANSHIBUKEXINGDE。LINGYIZHONGFANGFASHISHIYONGYIZHIXINGHAXISUANFA,XIUGAIXINZENGJIEDIANJIXIANGLINJIEDIANDEhashYINGSHEKONGJIAN,JINXUYAOYIDONGXIANGLINJIEDIANSHANGDEBUFENSHUJUZHIXINZENGJIEDIAN,YINGXIANGXIANGDUIXIAOLEHENDUO。RANER,ZHEIYOUDAILAILINGWAIYIGEWENTI,JIXITONGZHENGTIFUZAIBUJUNHENG。GlusterFSMEIYOUCAIYONGSHANGSHULIANGZHONGFANGFA,ERSHISHEJILEGENGWEIDANXINGDESUANFA。GlusterFSDEHAXIFENBUSHIYIMULUWEIJIBENDANWEIDE,WENJIANDEFUMULULIYONGKUOZHANSHUXINGJILULEZIJUANYINGSHEXINXI,QIXIAMIANZIWENJIANMULUZAIFUMULUSUOSHUCUNCHUFUWUQIZHONGJINXINGFENBU。YOUYUWENJIANMULUSHIXIANBAOCUNLEFENBUXINXI,YINCIXINZENGJIEDIANBUHUIYINGXIANGXIANYOUWENJIANCUNCHUFENBU,TAJIANGCONGCIHOUDEXINCHUANGJIANMULUKAISHICANYUCUNCHUFENBUDIAODU。ZHEIZHONGSHEJI,XINZENGJIEDIANBUXUYAOYIDONGRENHEWENJIAN,DANSHIFUZAIJUNHENGMEIYOUPINGHUACHULI,LAOJIEDIANFUZAIJIAOZHONG。GlusterFSZAISHEJIZHONGKAOLVLEZHEIYIWENTI,ZAIXINJIANWENJIANSHIHUIYOUXIANKAOLVRONGLIANGFUZAIZUIQINGDEJIEDIAN,ZAIMUBIAOCUNCHUJIEDIANSHANGCHUANGJIANWENJIANLIANJIEZHIXIANGZHENZHENGCUNCHUWENJIANDEJIEDIAN。LINGWAI,GlusterFSDANXINGJUANGUANLIGONGJUKEYIZAIHOUTAIYIRENGONGFANGSHILAIZHIXINGFUZAIPINGHUA,JIANGJINXINGWENJIANYIDONGHEZHONGXINFENBU,CIHOUSUOYOUCUNCHUFUWUQIDOUHUIJUNHUIBEIDIAODU。

                宏源棋牌GlusterFSMUQIANDUICUNCHUJIEDIANSHANCHUZHICHIYOUXIAN,HAIWUFAZUODAOWANQUANWURENGANYUDECHENGDU。RUGUOZHIJIESHANCHUJIEDIAN,NEIMESUOZAICUNCHUFUWUQISHANGDEWENJIANJIANGWUFALIULANHEFANGWEN,CHUANGJIANWENJIANMULUYEHUISHIBAI。DANGQIANRENGONGJIEJUEFANGFAYOULIANGGE,YISHIJIANGJIEDIANSHANGDESHUJUZHONGXINFUZHIDAOGlusterFSZHONG,ERSHISHIYONGXINDEJIEDIANLAITIHUANSHANCHUJIEDIANBINGBAOCHIYUANYOUSHUJU。

                宏源棋牌RUGUOYIGEWENJIANBEIGAIMING,XIANRANhashSUANFAJIANGCHANSHENGBUTONGDEZHI,FEICHANGKENENGHUIFASHENGWENJIANBEIDINGWEIDAOBUTONGDECUNCHUFUWUQISHANG,CONGERDAOZHIWENJIANFANGWENSHIBAI。CAIYONGSHUJUYIDONGDEFANGFA,DUIYUDAWENJIANSHIHENNANZAISHISHIWANCHENGDE。WEILEBUYINGXIANGXINGNENGHEFUWUZHONGDUAN,GlusterFSCAIYONGLEWENJIANLIANJIELAIJIEJUEWENJIANZHONGMINGMINGWENTI,ZAIMUBIAOCUNCHUFUWUQISHANGCHUANGJIANYIGELIANJIEZHIXIANGSHIJIDECUNCHUFUWUQI,FANGWENSHIYOUXITONGJIEXIBINGJINXINGZHONGDINGXIANG。LINGWAI,HOUTAITONGSHIJINXINGWENJIANQIANYI,CHENGGONGHOUWENJIANLIANJIEJIANGBEIZIDONGSHANCHU。DUIYUWENJIANYIDONGYEZUOLEISICHULI,HAOCHUSHIQIANTAICAOZUOKESHISHICHULI,WULISHUJUQIANYIZHIYUHOUTAIXUANZESHIDANGSHIJIZHIXING。

                GlusterFS分布式文件系统学习之 简介篇

                TU4 GlusterFSDANXINGJUANGUANLI

                宏源棋牌DANXINGHAXISUANFAWEIWENJIANFENPEILUOJIJUAN,NEIMEGlusterFSRUHEWEILUOJIJUANFENPEIWULIJUANNI?GlusterFS3.1.XSHIXIANLEZHENZHENGDEDANXINGJUANGUANLI,RUTU4SUOSHI。CUNCHUJUANSHIDUIDICENGYINGJIANDECHOUXIANG,KEYIGENJUXUYAOJINXINGKUORONGHESUOJIAN,YIJIZAIBUTONGWULIXITONGZHIJIANJINXINGQIANYI。CUNCHUFUWUQIKEYIZAIXIANZENGJIAHEYICHU,BINGNENGZAIJIQUNZHIJIANZIDONGJINXINGSHUJUFUZAIPINGHENG,SHUJUZONGSHIZAIXIANKEYONG,MEIYOUYINGYONGZHONGDUAN。WENJIANXITONGPEIZHIGENGXINYEKEYIZAIXIANZHIXING,SUOZUOPEIZHIBIANDONGNENGGOUKUAISUDONGTAIDIZAIJIQUNZHONGCHUANBO,CONGERZIDONGSHIYINGFUZAIBODONGHEXINGNENGDIAOYOU。

                 DANXINGHAXISUANFABENSHENBINGMEIYOUTIGONGSHUJURONGCUOGONGNENG,GlusterFSSHIYONGJINGXIANGHUOFUZHILAIBAOZHENGSHUJUKEYONGXING,TUIJIANSHIYONGJINGXIANGHUO3LUFUZHI。FUZHIMOSHIXIA,CUNCHUFUWUQISHIYONGTONGBUXIEFUZHIDAOQITADECUNCHUFUWUQI,DANGEFUWUQIGUZHANGWANQUANDUIKEHUDUANTOUMING。CIWAI,GlusterFSMEIYOUDUIFUZHISHULIANGJINXINGXIANZHI,DUBEIFENSANDAOSUOYOUDEJINGXIANGCUNCHUJIEDIAN,KEYITIGAODUXINGNENG。DANXINGHAXISUANFAFENPEIWENJIANDAOWEIYIDELUOJIJUAN,ERFUZHIKEYIBAOZHENGSHUJUZHISHAOBAOCUNZAILIANGGEBUTONGCUNCHUJIEDIAN,LIANGZHEJIEHESHIDEGlusterFSJUBEIGENGGAODEDANXING。

                6.Translators

                RUQIANSUOSHU,TranslatorsSHIGlusterFSTIGONGDEYIZHONGQIANGDAWENJIANXITONGGONGNENGKUOZHANJIZHI,ZHEIYISHEJISIXIANGJIEJIANYUGNU/HurdWEINEIHECAOZUOXITONG。GlusterFSZHONGSUOYOUDEGONGNENGDOUTONGGUOTranslatorJIZHISHIXIAN,YUNXINGSHIYIDONGTAIKUFANGSHIJINXINGJIAZAI,FUWUDUANHEKEHUDUANXIANGHUJIANRONG。GlusterFS 3.1.XZHONG,ZHUYAOBAOKUOYIXIAJILEITranslator:

                (1)  Cluster:CUNCHUJIQUNFENBU,MUQIANYOUAFR, DHT, StripeSANZHONGFANGSHI

                (2)  Debug:GENZONGGlusterFSNEIBUHANSHUHEXITONGDIAOYONG

                宏源棋牌(3)  Encryption:JIANDANDESHUJUJIAMISHIXIAN

                (4)  Features:FANGWENKONGZHI、SUO、MacJIANRONG、JINGMO、PEIE、ZHIDU、HUISHOUZHANDENG

                宏源棋牌(5)  Mgmt:DANXINGJUANGUANLI

                (6)  Mount:FUSEJIEKOUSHIXIAN

                (7)  Nfs:NEIBUNFSFUWUQI

                宏源棋牌(8)  Performance:io-cache, io-threads, quick-read, read-ahead, stat-prefetch, sysmlink-cache, write-behindDENGXINGNENGYOUHUA

                (9)  Protocol:FUWUQIHEKEHUDUANXIEYISHIXIAN

                宏源棋牌(10)Storage:DICENGWENJIANXITONGPOSIXJIEKOUSHIXIAN

                ZHEILIWOMENZHONGDIANJIESHAOYIXIACluster Translators,TASHISHIXIANGlusterFSJIQUNCUNCHUDEHEXIN,TABAOKUOAFR(Automatic File Replication)、DHT(Distributed Hash Table)HEStripeSANZHONGLEIXING。

                AFRXIANGDANGYURAID1,TONGYIWENJIANZAIDUOGECUNCHUJIEDIANSHANGBAOLIUDUOFEN,ZHUYAOYONGYUSHIXIANGAOKEYONGXINGYIJISHUJUZIDONGXIUFU。AFRSUOYOUZIJUANSHANGJUYOUXIANGTONGDEMINGZIKONGJIAN,CHAZHAOWENJIANSHICONGDIYIGEJIEDIANKAISHI,ZHIDAOSOUSUOCHENGGONGHUOZUIHOUJIEDIANSOUSUOWANBI。DUSHUJUSHI,AFRHUIBASUOYOUQINGQIUDIAODUDAOSUOYOUCUNCHUJIEDIAN,JINXINGFUZAIJUNHENGYITIGAOXITONGXINGNENG。XIESHUJUSHI,SHOUXIANXUYAOZAISUOYOUSUOFUWUQISHANGDUIWENJIANJIASUO,MORENDIYIGEJIEDIANWEISUOFUWUQI,KEYIZHIDINGDUOGE。RANHOU,AFRYIRIZHISHIJIANFANGSHIDUISUOYOUFUWUQIJINXINGXIESHUJUCAOZUO,CHENGGONGHOUSHANCHURIZHIBINGJIESUO。AFRHUIZIDONGJIANCEBINGXIUFUTONGYIWENJIANDESHUJUBUYIZHIXING,TASHIYONGGENGGAIRIZHILAIQUEDINGHAODESHUJUFUBEN。ZIDONGXIUFUZAIWENJIANMULUSHOUCIFANGWENSHICHUFA,RUGUOSHIMULUJIANGZAISUOYOUZIJUANSHANGFUZHIZHENGQUESHUJU,RUGUOWENJIANBUCUNZECHUANGJIAN,WENJIANXINXIBUPIPEIZEXIUFU,RIZHIZHISHIGENGXINZEJINXINGGENGXIN。

                DHTJISHANGMIANSUOJIESHAODEDANXINGHAXISUANFA,TACAIYONGhashFANGSHIJINXINGSHUJUFENBU,MINGZIKONGJIANFENBUZAISUOYOUJIEDIANSHANG。CHAZHAOWENJIANSHI,TONGGUODANXINGHAXISUANFAJINXING,BUYILAIMINGZIKONGJIAN。DANBIANLIWENJIANMULUSHI,ZESHIXIANJIAOWEIFUZAHEDIXIAO,XUYAOSOUSUOSUOYOUDECUNCHUJIEDIAN。DANYIWENJIANZHIHUIDIAODUDAOWEIYIDECUNCHUJIEDIAN,YIDANWENJIANBEIDINGWEIHOU,DUXIEMOSHIXIANGDUIJIANDAN。DHTBUJUBEIRONGCUONENGLI,XUYAOJIEZHUAFRSHIXIANGAOKEYONGXING, RUTU5SUOSHIYINGYONGANLI。

                StripeXIANGDANGYURAID0,JIFENPIANCUNCHU,WENJIANBEIHUAFENCHENGGUDINGZHANGDUDESHUJUFENPIANYIRound-RobinLUNZHUANFANGSHICUNCHUZAISUOYOUCUNCHUJIEDIAN。StripeSUOYOUCUNCHUJIEDIANZUCHENGWANZHENGDEMINGZIKONGJIAN,CHAZHAOWENJIANSHIXUYAOXUNWENSUOYOUJIEDIAN,ZHEIDIANFEICHANGDIXIAO。DUXIESHUJUSHI,StripeSHEJIQUANBUFENPIANCUNCHUJIEDIAN,CAOZUOKEYIZAIDUOGEJIEDIANZHIJIANBINGFAZHIXING,XINGNENGFEICHANGGAO。StripeTONGCHANGYUAFRZUHESHIYONG,GOUCHENGRAID10/RAID01,TONGSHIHUODEGAOXINGNENGHEGAOKEYONGXING,DANGRANCUNCHULIYONGLVHUIDIYU50%。

                GlusterFS分布式文件系统学习之 简介篇

                宏源棋牌TU5 GlusterFSYINGYONGANLI:AFR+DHT

                7.设计讨论

                GlusterFSSHIYIGEJUYOUGAOKUOZHANXING、GAOXINGNENG、GAOKEYONGXING、KEHENGXIANGKUOZHANDEDANXINGFENBUSHIWENJIANXITONG,ZAIJIAGOUSHEJISHANGFEICHANGYOUTEDIAN,BIRUWUYUANSHUJUFUWUQISHEJI、DUIZHANSHIJIAGOUDENG。RANER,CUNCHUYINGYONGWENTISHIHENFUZADE,GlusterFSYEBUKENENGMANZUSUOYOUDECUNCHUXUQIU,SHEJISHIXIANSHANGYEYIDINGYOUKAOLVBUZUZHICHU,XIAMIANWOMENZUOJIANYAOFENXI。

                * 无元数据服务器 vs 元数据服务器

                WUYUANSHUJUFUWUQISHEJIDEHAOCHUSHIMEIYOUDANDIANGUZHANGHEXINGNENGPINGJINGWENTI,KETIGAOXITONGKUOZHANXING、XINGNENG、KEKAOXINGHEWENDINGXING。DUIYUHAILIANGXIAOWENJIANYINGYONG,ZHEIZHONGSHEJINENGGOUYOUXIAOJIEJUEYUANSHUJUDENANDIANWENTI。TADEFUMIANYINGXIANGSHI,SHUJUYIZHIWENTIGENGJIAFUZA,WENJIANMULUBIANLICAOZUOXIAOLVDIXIA,QUEFAQUANJUJIANKONGGUANLIGONGNENG。TONGSHIYEDAOZHIKEHUDUANCHENGDANLEGENGDUODEZHINENG,BIRUWENJIANDINGWEI、MINGZIKONGJIANHUANCUN、LUOJIJUANSHITUWEIHUDENGDENG,ZHEIXIEDOUZENGJIALEKEHUDUANDEFUZAI,ZHANYONGXIANGDANGDECPUHENEICUN。

                * 用户空间 vs 内核空间

                YONGHUKONGJIANSHIXIANQILAIXIANGDUIYAOJIANDANXUDUO,DUIKAIFAZHEJINENGYAOQIUJIAODI,YUNXINGXIANGDUIANQUAN。YONGHUKONGJIANXIAOLVDI,SHUJUXUYAODUOCIYUNEIHEKONGJIANJIAOHUAN,LINGWAIGlusterFSJIEZHUFUSELAISHIXIANBIAOZHUNWENJIANXITONGJIEKOU,XINGNENGSHANGYOUYOUSUOSUNHAO。NEIHEKONGJIANSHIXIANKEYIHUODEHENGAODESHUJUTUNTULIANG,QUEDIANSHISHIXIANHEDIAOSHIFEICHANGKUNNAN,CHENGXUCHUCUOJINGCHANGHUIDAOZHIXITONGBENGKUI,ANQUANXINGDI。ZONGXIANGKUOZHANSHANG,NEIHEKONGJIANYAOYOUYUYONGHUKONGJIAN,GlusterFSYOUHENGXIANGKUOZHANNENGLILAIMIBU。

                * 堆栈式 vs 非堆栈式

                ZHEIYOUDIANXIANGCAOZUOXITONGDEWEINEIHESHEJIYUDANYINEIHESHEJIZHIZHENG。GlusterFSDUIZHANSHISHEJISIXIANGYUANZIGNU/HurdWEINEIHECAOZUOXITONG,JUYOUHENQIANGDEXITONGKUOZHANNENGLI,XITONGSHEJISHIXIANFUZAXINGJIANGDIHENDUO,JIBENGONGNENGMOKUAIDEDUIZHANSHIZUHEJIUKEYISHIXIANQIANGDADEGONGNENG。CHAKANGlusterFSJUANPEIZHIWENJIANWOMENKEYIFAXIAN,translatorGONGNENGSHUTONGCHANGSHENDA10CENGYISHANG,YICENGYICENGJINXINGDIAOYONG,XIAOLVKEJIANYIBAN。FEIDUIZHANSHISHEJIKEKANCHENGLEISILinuxDEDANYINEIHESHEJI,XITONGDIAOYONGTONGGUOZHONGDUANSHIXIAN,FEICHANGGAOXIAO。HOUZHEDEWENTISHIXITONGHEXINYONGZHONG,SHIXIANHEKUOZHANFUZA,CHUXIANWENTIDIAOSHIKUNNAN。

                * 原始存储格式 vs 私有存储格式

                GlusterFSSHIYONGYUANSHIGESHICUNCHUWENJIANHUOSHUJUFENPIAN,KEYIZHIJIESHIYONGGEZHONGBIAOZHUNDEGONGJUJINXINGFANGWEN,SHUJUHUCAOZUOXINGHAO,QIANYIHESHUJUGUANLIFEICHANGFANGBIAN。RANER,SHUJUANQUANCHENGLEWENTI,YINWEISHUJUSHIYIPINGFANDEFANGSHIBAOCUNDE,JIECHUSHUJUDERENKEYIZHIJIEFUZHIHECHAKAN。ZHEIDUIHENDUOYINGYONGXIANRANSHIBUNENGJIESHOUDE,BIRUYUNCUNCHUXITONG,YONGHUTEBIEGUANXINSHUJUANQUAN,ZHEIYESHIYINGXIANGGONGYOUYUNCUNCHUFAZHANDEYIGEZHONGYAOYUANYIN。SIYOUCUNCHUGESHIKEYIBAOZHENGSHUJUDEANQUANXING,JISHIXIELUYESHIBUKEZHIDE。GlusterFSYAOSHIXIANZIJIDESIYOUGESHI,ZAISHEJISHIXIANHESHUJUGUANLISHANGXIANGDUIFUZAYIXIE,YEHUIDUIXINGNENGCHANSHENGYIDINGYINGXIANG。

                * 大文件 vs 小文件

                GlusterFSSHIHEDAWENJIANHAISHIXIAOWENJIANCUNCHU?DANXINGHAXISUANFAHEStripeSHUJUFENBUCELVE,YICHULEYUANSHUJUYILAI,YOUHUALESHUJUFENBU,TIGAOSHUJUFANGWENBINGXINGXING,NENGGOUDAFUTIGAODAWENJIANCUNCHUDEXINGNENG。DUIYUXIAOWENJIAN,WUYUANSHUJUFUWUSHEJIJIEJUELEYUANSHUJUDEWENTI。DANGlusterFSBINGMEIYOUZAII/OFANGMIANZUOYOUHUA,ZAICUNCHUFUWUQIDICENGWENJIANXITONGSHANGRENGRANSHIDALIANGXIAOWENJIAN,BENDIWENJIANXITONGYUANSHUJUFANGWENSHIYIGEPINGJING,SHUJUFENBUHEBINGXINGXINGYEWUFACHONGFENFAHUIZUOYONG。YINCI,GlusterFSSHIHECUNCHUDAWENJIAN,XIAOWENJIANXINGNENGJIAOCHA,HAICUNZAIHENDAYOUHUAKONGJIAN。

                * 可用性 vs 存储利用率

                GlusterFSSHIYONGFUZHIJISHULAITIGONGSHUJUGAOKEYONGXING,FUZHISHULIANGMEIYOUXIANZHI,ZIDONGXIUFUGONGNENGJIYUFUZHILAISHIXIAN。KEYONGXINGYUCUNCHULIYONGLVSHIYIGEMAODUNTI,KEYONGXINGGAOCUNCHULIYONGLVJIUDI,FANZHIYIRAN。CAIYONGFUZHIJISHU,CUNCHULIYONGLVWEI1/FUZHISHU,JINGXIANGSHI50%,SANLUFUZHIZEZHIYOU33%。QISHI,KEYIYOUFANGFALAITONGSHITIGAOKEYONGXINGHECUNCHULIYONGLV,BIRURAID5DELIYONGLVSHI(n-1)/n,RAID6SHI(n-2)/n,ERJIUSHANMAJISHUKEYITIGONGGENGGAODECUNCHULIYONGLV。DANSHI,YUHEXIONGZHANGBUKEDEJIAN,TAMENDOUHUIDUIXINGNENGCHANSHENGJIAODAYINGXIANG。

                LINGWAI,GlusterFSMUQIANDEDAIMASHIXIANBUGOUHAO,XITONGBUGOUWENDING,BUGSSHULIANGXIANGDUIHAIBIJIAODUO。CONGQIGUANFANGWANGZHANDEBUSHUQINGKUANGLAIKAN,CESHIYONGHUFEICHANGDUO,DANSHIZHENZHENGZAISHENGCHANHUANJINGZHONGDEYINGYONGJIAOSHAO,CUNCHUBUSHURONGLIANGJITB-JISHITBDEZHANHENDABILV,SHUBAITB-PBJIANLIFEICHANGSHAO。ZHEIYEKEYICONGLINGYIGEFANGMIANSHUOMING,GlusterFSMUQIANHAIBUGOUWENDING,XUYAOGENGZHANGDESHIJIANLAIJIANYAN。RANERBUKEFOUREN,GlusterFSSHIYIGEYOUZHEGUANGMINGQIANJINGDEJIQUNWENJIANXITONG,XIANXINGHENGXIANGKUOZHANNENGLISHITAJUYOUTIANSHENGDEYOUSHI,YOUQISHIDUIYUYUNCUNCHUXITONG。

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