Difference between revisions of "ZFS"

Revision as of 12:52, 22 February 2017

ZFS Installation

more detailed information can be found in this link ---> here

The omreport/omconfig commands are special to Dell machines but there should be similar commands available for other installations.

1) find out which disks are there to be used

  omreport storage pdisk controller=0|grep -E "^ID|Capacity"

2) for the disks id found above create single raid0 IF you have a raid controller only and no HBA:

 for i in $(seq 0 11); 
 do 
   omconfig storage controller controller=NUMBER action=createvdisk raid=r0 size=max pdisk=0:0:$i; 
 done

The pdisk id needs to be adapted!

3) look if all disks are available

  lsblk |grep disk

4) find the correct disks to be put in the storage zpool (example for 2TB disks)

  lsblk |grep 1.8T

5) with the names returned by lsblk create a raidz2 or raidz3 depending on your needs

Be sure not to forget to configure the spare!

 zpool create -f POOLNAME raidz3 sdb sdc sdd sde sdf sdg sdh sdi sdj sdk sdl sdm sdab sdad sdae sdag sdah sdaj spare sdak

6) enable different features of zpool and zfs and configure it correctly

  zfs set compression=lz4 POOLNAME;
  zpool set autoreplace=on POOLNAME;
  zpool set autoexpand=on POOLNAME;
  zfs set relatime=on POOLNAME;
  zfs set xattr=sa POOLNAME;
  zpool export POOLNAME;
  zpool import -d /dev/disk/by-id POOLNAME;

7) for usage with DPM:

  zfs create POOLNAME/gridstorage01
  chown -R dpmmgr:dpmmgr /POOLNAME