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zfsnotes:notes_sur_zfs [2018/09/21 15:34] ghussonzfsnotes:notes_sur_zfs [2023/04/04 13:22] (Version actuelle) ghusson
Ligne 1: Ligne 1:
  
 **List disks by ID** **List disks by ID**
-<code>ls -alh /dev/disk/by-id</code>+<code bash> 
 +ls -alh /dev/disk/by-id 
 +</code>
 Help : make correspondances with disks by-path : Help : make correspondances with disks by-path :
-<code>ls -alh /dev/disk/by-path/</code>+<code bash> 
 +ls -alh /dev/disk/by-path/ 
 +</code>
 An other view : An other view :
-<code>lsblk -o NAME,SIZE,FSTYPE,TYPE,MOUNTPOINT</code>+<code bash> 
 +lsblk -o NAME,SIZE,FSTYPE,TYPE,MOUNTPOINT 
 +</code>
  
 +**Create zpool of RAIDZ1 type**, named "zp1" 3 disk, ashift=12 (4096 bytes pool sector size)
  
 +Notes : The ashift needs to be set at least to the sector-size of the underlying disks (2 to the power of ashift is the sector-size), or any disk which might be put in the pool (for example the replacement of a defective disk). 
  
- +<code bash>
-**Create zpool of RAIDZ1 type**, named "zp1" 3 disk, ashift=12 (4096 bytes pool sector size) +
-<code>+
 zpool create -f zp1 raidz1 -o ashift=12 /dev/disk/by-id/scsi-36a4badb038591c00233791390c02c443 /dev/disk/by-id/scsi-36a4badb038591c00233791480cde8092 /dev/disk/by-id/scsi-36a4badb038591c00233791540d9dabe0 zpool create -f zp1 raidz1 -o ashift=12 /dev/disk/by-id/scsi-36a4badb038591c00233791390c02c443 /dev/disk/by-id/scsi-36a4badb038591c00233791480cde8092 /dev/disk/by-id/scsi-36a4badb038591c00233791540d9dabe0
 </code> </code>
  
 **Get some info about it :** **Get some info about it :**
-<code>zpool list+<code bash> 
 +zpool list
 zpool status -Pv zp1 zpool status -Pv zp1
 zpool get all zpool get all
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 RQ : by default, it is mounted over /zp1 RQ : by default, it is mounted over /zp1
-<code>zfs get all+<code bash> 
 +zfs get all
 # You see the mount point here ! # You see the mount point here !
 </code> </code>
Ligne 31: Ligne 39:
 - 1 partition, size = memory size / 2 - 1 partition, size = memory size / 2
 - 1 partition with the lefting space - 1 partition with the lefting space
-<code>zpool add zp1 log /dev/disk/by-id/scsi-36a4badb038591c002337912c0b32c066-part1+<code bash> 
 +zpool add zp1 log /dev/disk/by-id/scsi-36a4badb038591c002337912c0b32c066-part1
 zpool add zp1 cache /dev/disk/by-id/scsi-36a4badb038591c002337912c0b32c066-part2 zpool add zp1 cache /dev/disk/by-id/scsi-36a4badb038591c002337912c0b32c066-part2
 zpool status -Pv zp1 zpool status -Pv zp1
 </code> </code>
- 
- 
  
 **REVERT :** **REVERT :**
-<code>+<code bash>
 zpool remove zp1 /dev/disk/by-id/scsi-36a4badb038591c002337912c0b32c066-part2 zpool remove zp1 /dev/disk/by-id/scsi-36a4badb038591c002337912c0b32c066-part2
 zpool remove zp1 /dev/disk/by-id/scsi-36a4badb038591c002337912c0b32c066-part1 zpool remove zp1 /dev/disk/by-id/scsi-36a4badb038591c002337912c0b32c066-part1
 zpool destroy zp1 zpool destroy zp1
 </code> </code>
- 
  
 **TESTS** **TESTS**
  
-<code>apt-get install fio+<code bash> 
 +apt-get install fio
  
 echo 3 > /proc/sys/vm/drop_caches echo 3 > /proc/sys/vm/drop_caches
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 # 3 SAS 10k disks, 80GB, SLOG 20GB, CACHE 120GB # 3 SAS 10k disks, 80GB, SLOG 20GB, CACHE 120GB
 # before each test, run : echo 3 > /proc/sys/vm/drop_caches # before each test, run : echo 3 > /proc/sys/vm/drop_caches
-<code>+<code bash>
    READ: io=272184KB, aggrb=8469KB/s, minb=8469KB/s, maxb=8469KB/s, mint=32138msec, maxt=32138msec    READ: io=272184KB, aggrb=8469KB/s, minb=8469KB/s, maxb=8469KB/s, mint=32138msec, maxt=32138msec
   WRITE: io=64730KB, aggrb=2014KB/s, minb=2014KB/s, maxb=2014KB/s, mint=32138msec, maxt=32138msec   WRITE: io=64730KB, aggrb=2014KB/s, minb=2014KB/s, maxb=2014KB/s, mint=32138msec, maxt=32138msec
Ligne 67: Ligne 74:
  
 # remove CACHE # remove CACHE
-<code>+<code bash>
 zpool remove zp1 /dev/disk/by-id/scsi-36a4badb038591c002337912c0b32c066-part2 zpool remove zp1 /dev/disk/by-id/scsi-36a4badb038591c002337912c0b32c066-part2
  
Ligne 75: Ligne 82:
  
 # remove SLOG # remove SLOG
-<code>+<code bash>
 zpool remove zp1 /dev/disk/by-id/scsi-36a4badb038591c002337912c0b32c066-part1 zpool remove zp1 /dev/disk/by-id/scsi-36a4badb038591c002337912c0b32c066-part1
  
zfsnotes/notes_sur_zfs.1537544047.txt.gz · Dernière modification : 2018/09/21 15:34 de ghusson