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3.2. 掛​​​​​​​載​​​​​​​檔​​​​​​​案​​​​​​​系​​​​​​​統​​​​​​​

Before you can mount a GFS2 file system, the file system must exist (refer to 節 3.1, “製​​​​​​​作​​​​​​​檔​​​​​​​案​​​​​​​系​​​​​​​統​​​​​​​”), the volume where the file system exists must be activated, and the supporting clustering and locking systems must be started (refer to Configuring and Managing a Red Hat Cluster). After those requirements have been met, you can mount the GFS2 file system as you would any Linux file system.
若​​​​​​​要​​​​​​​操​​​​​​​縱​​​​​​​檔​​​​​​​案​​​​​​​的​​​​​​​ ACL（Access Control List，存​​​​​​​取​​​​​​​控​​​​​​​制​​​​​​​清​​​​​​​單​​​​​​​），您​​​​​​​必​​​​​​​須​​​​​​​使​​​​​​​用​​​​​​​ -o acl 掛​​​​​​​載​​​​​​​選​​​​​​​項​​​​​​​來​​​​​​​掛​​​​​​​載​​​​​​​檔​​​​​​​案​​​​​​​系​​​​​​​統​​​​​​​。​​​​​​​若​​​​​​​檔​​​​​​​案​​​​​​​系​​​​​​​統​​​​​​​掛​​​​​​​載​​​​​​​時​​​​​​​沒​​​​​​​有​​​​​​​使​​​​​​​用​​​​​​​ -o acl 掛​​​​​​​載​​​​​​​選​​​​​​​項​​​​​​​的​​​​​​​話​​​​​​​，用​​​​​​​戶​​​​​​​雖​​​​​​​可​​​​​​​檢​​​​​​​視​​​​​​​ ACL（透​​​​​​​過​​​​​​​ getfacl 指​​​​​​​令​​​​​​​），不​​​​​​​過​​​​​​​卻​​​​​​​無​​​​​​​法​​​​​​​針​​​​​​​對​​​​​​​於​​​​​​​它​​​​​​​們​​​​​​​進​​​​​​​行​​​​​​​設​​​​​​​定​​​​​​​（透​​​​​​​過​​​​​​​ setfacl 指​​​​​​​令​​​​​​​）。​​​​​​​

3.2.1. 用​​​​​​​法​​​​​​​

Mounting Without ACL Manipulation 
mount BlockDevice MountPoint
Mounting With ACL Manipulation 
mount -o acl BlockDevice MountPoint
-o acl
用​​​​​​​來​​​​​​​允​​​​​​​許​​​​​​​操​​​​​​​縱​​​​​​​檔​​​​​​​案​​​​​​​ ACL 的​​​​​​​ GFS2 特​​​​​​​屬​​​​​​​選​​​​​​​項​​​​​​​。​​​​​​​
BlockDevice
可​​​​​​​指​​​​​​​定​​​​​​​ GFS2 檔​​​​​​​案​​​​​​​系​​​​​​​統​​​​​​​所​​​​​​​駐​​​​​​​留​​​​​​​的​​​​​​​區​​​​​​​塊​​​​​​​裝​​​​​​​置​​​​​​​。​​​​​​​
MountPoint
可​​​​​​​指​​​​​​​定​​​​​​​ GFS2 檔​​​​​​​案​​​​​​​系​​​​​​​統​​​​​​​應​​​​​​​被​​​​​​​掛​​​​​​​載​​​​​​​的​​​​​​​目​​​​​​​錄​​​​​​​。​​​​​​​

3.2.2. 範​​​​​​​例​​​​​​​

在​​​​​​​此​​​​​​​範​​​​​​​例​​​​​​​中​​​​​​​，/dev/vg01/lvol0 上​​​​​​​的​​​​​​​ GFS2 檔​​​​​​​案​​​​​​​系​​​​​​​統​​​​​​​會​​​​​​​被​​​​​​​掛​​​​​​​載​​​​​​​於​​​​​​​ /mygfs2 目​​​​​​​錄​​​​​​​上​​​​​​​。​​​​​​​ 
mount /dev/vg01/lvol0 /mygfs2

3.2.3. 完​​​​​​​整​​​​​​​使​​​​​​​用​​​​​​​方​​​​​​​法​​​​​​​

mount BlockDevice MountPoint -o option
The -o option argument consists of GFS2-specific options (refer to 表格 3.2, “GFS2 特​​​​​​​屬​​​​​​​的​​​​​​​掛​​​​​​​載​​​​​​​選​​​​​​​項​​​​​​​”) or acceptable standard Linux mount -o options, or a combination of both. Multiple option parameters are separated by a comma and no spaces.

注意

mount 指​​​​​​​令​​​​​​​是​​​​​​​一​​​​​​​項​​​​​​​ Linux 系​​​​​​​統​​​​​​​指​​​​​​​令​​​​​​​。​​​​​​​除​​​​​​​了​​​​​​​使​​​​​​​用​​​​​​​描​​​​​​​述​​​​​​​於​​​​​​​此​​​​​​​部​​​​​​​份​​​​​​​中​​​​​​​的​​​​​​​ GFS2 特​​​​​​​屬​​​​​​​選​​​​​​​項​​​​​​​，您​​​​​​​亦​​​​​​​可​​​​​​​使​​​​​​​用​​​​​​​其​​​​​​​它​​​​​​​的​​​​​​​標​​​​​​​準​​​​​​​ mount 指​​​​​​​令​​​​​​​選​​​​​​​項​​​​​​​（例​​​​​​​如​​​​​​​ -r）。​​​​​​​如​​​​​​​欲​​​​​​​取​​​​​​​得​​​​​​​更​​​​​​​多​​​​​​​有​​​​​​​關​​​​​​​於​​​​​​​其​​​​​​​它​​​​​​​ Linux mount 指​​​​​​​令​​​​​​​選​​​​​​​項​​​​​​​的​​​​​​​相​​​​​​​關​​​​​​​資​​​​​​​訊​​​​​​​，請​​​​​​​查​​​​​​​看​​​​​​​ Linux 的​​​​​​​ mount man page。​​​​​​​
表格 3.2, “GFS2 特​​​​​​​屬​​​​​​​的​​​​​​​掛​​​​​​​載​​​​​​​選​​​​​​​項​​​​​​​” describes the available GFS2-specific -o option values that can be passed to GFS2 at mount time.

表格 3.2. GFS2 特​​​​​​​屬​​​​​​​的​​​​​​​掛​​​​​​​載​​​​​​​選​​​​​​​項​​​​​​​

選​​​​​​​項​​​​​​​ 描​​​​​​​述​​​​​​​
acl 允​​​​​​​許​​​​​​​操​​​​​​​縱​​​​​​​檔​​​​​​​案​​​​​​​的​​​​​​​ ACL。​​​​​​​如​​​​​​​果​​​​​​​檔​​​​​​​案​​​​​​​系​​​​​​​統​​​​​​​在​​​​​​​掛​​​​​​​載​​​​​​​時​​​​​​​沒​​​​​​​有​​​​​​​使​​​​​​​用​​​​​​​ acl 掛​​​​​​​載​​​​​​​選​​​​​​​項​​​​​​​的​​​​​​​話​​​​​​​，用​​​​​​​戶​​​​​​​雖​​​​​​​能​​​​​​​檢​​​​​​​視​​​​​​​ ACL（透​​​​​​​過​​​​​​​ getfacl 指​​​​​​​令​​​​​​​），不​​​​​​​過​​​​​​​卻​​​​​​​不​​​​​​​允​​​​​​​許​​​​​​​針​​​​​​​對​​​​​​​於​​​​​​​這​​​​​​​些​​​​​​​ ACL 進​​​​​​​行​​​​​​​設​​​​​​​定​​​​​​​（透​​​​​​​過​​​​​​​ setfacl 指​​​​​​​令​​​​​​​）。​​​​​​​
data=[ordered|writeback] 當​​​​​​​ data=ordered 被​​​​​​​設​​​​​​​置​​​​​​​了​​​​​​​之​​​​​​​後​​​​​​​，經​​​​​​​過​​​​​​​一​​​​​​​項​​​​​​​交​​​​​​​易​​​​​​​所​​​​​​​被​​​​​​​修​​​​​​​改​​​​​​​的​​​​​​​用​​​​​​​戶​​​​​​​資​​​​​​​料​​​​​​​會​​​​​​​在​​​​​​​該​​​​​​​交​​​​​​​易​​​​​​​被​​​​​​​載​​​​​​​入​​​​​​​磁​​​​​​​碟​​​​​​​中​​​​​​​之​​​​​​​前​​​​​​​被​​​​​​​ flush 至​​​​​​​磁​​​​​​​碟​​​​​​​中​​​​​​​。​​​​​​​這​​​​​​​可​​​​​​​避​​​​​​​免​​​​​​​用​​​​​​​戶​​​​​​​在​​​​​​​當​​​​​​​機​​​​​​​後​​​​​​​在​​​​​​​檔​​​​​​​案​​​​​​​中​​​​​​​看​​​​​​​見​​​​​​​未​​​​​​​初​​​​​​​始​​​​​​​化​​​​​​​區​​​​​​​塊​​​​​​​。​​​​​​​當​​​​​​​設​​​​​​​為​​​​​​​ data=writeback 模​​​​​​​式​​​​​​​後​​​​​​​，任​​​​​​​何​​​​​​​時​​​​​​​候​​​​​​​只​​​​​​​要​​​​​​​用​​​​​​​戶​​​​​​​資​​​​​​​料​​​​​​​被​​​​​​​標​​​​​​​示​​​​​​​不​​​​​​​完​​​​​​​整​​​​​​​（dirty）的​​​​​​​話​​​​​​​，該​​​​​​​用​​​​​​​戶​​​​​​​資​​​​​​​料​​​​​​​便​​​​​​​會​​​​​​​被​​​​​​​寫​​​​​​​入​​​​​​​磁​​​​​​​碟​​​​​​​中​​​​​​​；這​​​​​​​無​​​​​​​法​​​​​​​提​​​​​​​供​​​​​​​和​​​​​​​ ordered 模​​​​​​​式​​​​​​​相​​​​​​​同​​​​​​​的​​​​​​​一​​​​​​​致​​​​​​​性​​​​​​​保​​​​​​​證​​​​​​​，不​​​​​​​過​​​​​​​它​​​​​​​對​​​​​​​於​​​​​​​某​​​​​​​些​​​​​​​工​​​​​​​作​​​​​​​來​​​​​​​說​​​​​​​速​​​​​​​度​​​​​​​會​​​​​​​較​​​​​​​快​​​​​​​。​​​​​​​預​​​​​​​設​​​​​​​值​​​​​​​為​​​​​​​ ordered 模​​​​​​​式​​​​​​​。​​​​​​​
ignore_local_fs
Caution：當​​​​​​​ GFS2 檔​​​​​​​案​​​​​​​系​​​​​​​統​​​​​​​被​​​​​​​共​​​​​​​享​​​​​​​時​​​​​​​，此​​​​​​​選​​​​​​​項​​​​​​​就​​​​​​​不​​​​​​​該​​​​​​​被​​​​​​​使​​​​​​​用​​​​​​​。​​​​​​​
 強​​​​​​​制​​​​​​​ GFS2 將​​​​​​​檔​​​​​​​案​​​​​​​系​​​​​​​統​​​​​​​視​​​​​​​為​​​​​​​是​​​​​​​多​​​​​​​重​​​​​​​主​​​​​​​機​​​​​​​的​​​​​​​檔​​​​​​​案​​​​​​​系​​​​​​​統​​​​​​​。​​​​​​​就​​​​​​​預​​​​​​​設​​​​​​​值​​​​​​​，使​​​​​​​用​​​​​​​ lock_nolock 的​​​​​​​話​​​​​​​會​​​​​​​自​​​​​​​動​​​​​​​地​​​​​​​將​​​​​​​ localcaching 和​​​​​​​ localflocks 旗​​​​​​​標​​​​​​​開​​​​​​​啟​​​​​​​。​​​​​​​
localcaching
Caution：當​​​​​​​ GFS2 檔​​​​​​​案​​​​​​​系​​​​​​​統​​​​​​​被​​​​​​​共​​​​​​​享​​​​​​​時​​​​​​​，此​​​​​​​選​​​​​​​項​​​​​​​就​​​​​​​不​​​​​​​該​​​​​​​被​​​​​​​使​​​​​​​用​​​​​​​。​​​​​​​
 命​​​​​​​令​​​​​​​ GFS2 作​​​​​​​為​​​​​​​一​​​​​​​個​​​​​​​本​​​​​​​地​​​​​​​檔​​​​​​​案​​​​​​​系​​​​​​​統​​​​​​​來​​​​​​​執​​​​​​​行​​​​​​​。​​​​​​​接​​​​​​​著​​​​​​​ GFS2 便​​​​​​​可​​​​​​​選​​​​​​​擇​​​​​​​開​​​​​​​啟​​​​​​​在​​​​​​​執​​​​​​​行​​​​​​​於​​​​​​​叢​​​​​​​集​​​​​​​模​​​​​​​式​​​​​​​中​​​​​​​時​​​​​​​所​​​​​​​無​​​​​​​法​​​​​​​使​​​​​​​用​​​​​​​的​​​​​​​優​​​​​​​化​​​​​​​功​​​​​​​能​​​​​​​。​​​​​​​localcaching 旗​​​​​​​標​​​​​​​會​​​​​​​自​​​​​​​動​​​​​​​地​​​​​​​被​​​​​​​ lock_nolock 開​​​​​​​啟​​​​​​​。​​​​​​​
localflocks
請​​​​​​​注​​​​​​​意​​​​​​​：當​​​​​​​ GFS2 檔​​​​​​​案​​​​​​​系​​​​​​​統​​​​​​​被​​​​​​​共​​​​​​​享​​​​​​​時​​​​​​​，請​​​​​​​勿​​​​​​​使​​​​​​​用​​​​​​​此​​​​​​​選​​​​​​​項​​​​​​​。​​​​​​​
 命​​​​​​​令​​​​​​​ GFS2 來​​​​​​​讓​​​​​​​ VFS（虛​​​​​​​擬​​​​​​​檔​​​​​​​案​​​​​​​系​​​​​​​統​​​​​​​）層​​​​​​​級​​​​​​​進​​​​​​​行​​​​​​​所​​​​​​​有​​​​​​​的​​​​​​​ flock 和​​​​​​​ fcntl。​​​​​​​localflocks 旗​​​​​​​標​​​​​​​會​​​​​​​自​​​​​​​動​​​​​​​地​​​​​​​被​​​​​​​ lock_nolock 開​​​​​​​啟​​​​​​​。​​​​​​​
lockproto=LockModuleName 允​​​​​​​許​​​​​​​用​​​​​​​戶​​​​​​​指​​​​​​​定​​​​​​​檔​​​​​​​案​​​​​​​系​​​​​​​統​​​​​​​要​​​​​​​使​​​​​​​用​​​​​​​哪​​​​​​​個​​​​​​​鎖​​​​​​​定​​​​​​​通​​​​​​​訊​​​​​​​協​​​​​​​定​​​​​​​。​​​​​​​若​​​​​​​ LockModuleName 未​​​​​​​被​​​​​​​指​​​​​​​定​​​​​​​的​​​​​​​話​​​​​​​，那​​​​​​​麼​​​​​​​鎖​​​​​​​定​​​​​​​通​​​​​​​訊​​​​​​​協​​​​​​​定​​​​​​​名​​​​​​​稱​​​​​​​便​​​​​​​會​​​​​​​由​​​​​​​檔​​​​​​​案​​​​​​​系​​​​​​​統​​​​​​​的​​​​​​​ superblock 讀​​​​​​​取​​​​​​​。​​​​​​​
locktable=LockTableName 允​​​​​​​許​​​​​​​用​​​​​​​戶​​​​​​​指​​​​​​​定​​​​​​​檔​​​​​​​案​​​​​​​系​​​​​​​統​​​​​​​要​​​​​​​使​​​​​​​用​​​​​​​哪​​​​​​​個​​​​​​​鎖​​​​​​​定​​​​​​​表​​​​​​​格​​​​​​​。​​​​​​​
quota=[off/account/on] 開​​​​​​​啟​​​​​​​或​​​​​​​關​​​​​​​閉​​​​​​​檔​​​​​​​案​​​​​​​系​​​​​​​統​​​​​​​的​​​​​​​配​​​​​​​額​​​​​​​。​​​​​​​將​​​​​​​配​​​​​​​額​​​​​​​設​​​​​​​為​​​​​​​ account 狀​​​​​​​態​​​​​​​可​​​​​​​讓​​​​​​​檔​​​​​​​案​​​​​​​系​​​​​​​統​​​​​​​正​​​​​​​確​​​​​​​地​​​​​​​維​​​​​​​護​​​​​​​各​​​​​​​個​​​​​​​ UID/GID 使​​​​​​​用​​​​​​​量​​​​​​​上​​​​​​​的​​​​​​​數​​​​​​​據​​​​​​​；限​​​​​​​制​​​​​​​（limit）和​​​​​​​警​​​​​​​告​​​​​​​（warning）值​​​​​​​會​​​​​​​被​​​​​​​忽​​​​​​​略​​​​​​​掉​​​​​​​。​​​​​​​預​​​​​​​設​​​​​​​值​​​​​​​為​​​​​​​ off。​​​​​​​
upgrade 升​​​​​​​級​​​​​​​檔​​​​​​​案​​​​​​​系​​​​​​​統​​​​​​​的​​​​​​​ on-disk 格​​​​​​​式​​​​​​​，如​​​​​​​此​​​​​​​一​​​​​​​來​​​​​​​較​​​​​​​新​​​​​​​版​​​​​​​本​​​​​​​的​​​​​​​ GFS2 便​​​​​​​能​​​​​​​使​​​​​​​用​​​​​​​它​​​​​​​。​​​​​​​