====== ZFS ======

==== Zpool ====


=== To check zpool status ===
<code bash>
zpool status [<volume>]
</code>
=== To clear error on drive, which you think reported wrongly. ===
<code bash>
zpool clear <volume name>
</code>
=== To add Zeus Drive ===
<code bash>
zpool add performance log <drive>
</code>
=== Adding spare to volume ===
<code bash>
zpool add performance spare <drive>
</code>
=== Remove attached spare drive to volume ===
<code bash>
zpool detach <volume> <Drive>
</code>
=== Removing drives from volume (require to remove spare drives after raid rebuilt) ===
<code bash>
zpool remove <Volume> <Drive>
</code>

=== List all devices / drive ===

<code bash>
sas2ircu 0 DISPLAY
</code>

=== ZFS Display drive information by serial number ===

<code bash>
sas2ircu 0 DISPLAY | grep -B 9 -A 4 <Serial Number>
</code>

=== Freenas Blink Drives ===

<code bash>
sas2ircu 0 locate 3:7 ON  
</code>

=== Offline Drive ===

<code bash>
zpool offline hermes 15935140517898495532
</code>

=== Replace disk in ZFS Pool ===

<code bash>
zpool replace hermes 15935140517898495532 /dev/disk/by-id/ata-ST3500320AS_9QM03ATQ
</code>

==== Nexenta ====
=== Disk / Lun ===
To blink drive use following command in NMC
<code bash>
show lun c8t5000C5005785138Bd0 blink -y
</code>
=== Nexenta Mgmt. ===

To create nexenta collector report, Run following command from root prompt
<code bash>
nexenta-collector --no-upload
</code>
Printing Each JBOD Slotmap
<code bash>
nmc -c "show jbod jbod:1 slotmap" | less
</code>
Check HA Status from command line
<code bash>
/opt/HAC/RSF-1/bin/rsfcli status
</code>
Synchronize Disk Location
<code bash>
nmc -c "lunsync -r -y"
</code>
Migrate Pool to another server
<code bash>
/opt/HAC/RSF-1/bin/rsfcli -i0 move <volume> <hostname>
</code>
==== Solaris ====

List all faults on system
<code bash>
fmadm faulty
</code>
Clearing Faults
<code bash>
fmadm repair <faulty_id>
</code>
Checking Service status
<code bash>
svcs nm{s,v,cd} dbus rmvolmgr nmdtrace
</code>
Restarting Services
<code bash>
svcadm restart nms
</code>
Loading unloading zfs-diagnosis module
<code bash>
fmadm load /usr/lib/fm/fmd/plugins/zfs-diagnosis.so
</code>
Clearning dangling dev link
<code bash>
devfsadm -Cv
</code>

==== Check status of ARC and L2 ====
<code bash>
kstat -p zfs:0:arcstats
</code>