[OmniOS-discuss] A useful tidbit or two for ESX admins running OmniOS Fibre Targets

[Richard Jahnel]

Limiting the feature flags to those used in R151006 will eliminate the eager zero panic bug currently present in versions R151010 and later including the current LTS R151014.

Example:

zpool create -d \
-o feature at async_destroy=enabled \
-o feature at empty_bpobj=enabled \
-o feature at lz4_compress=enabled \
poolname \
raidz3 %disks% \
raidz3 %disks% \
<....>
log mirror %disks% \
cache %disks%

Also in an unrelated hint. Disabling the write back cache in the fibre target will prevent corrupted VMs that might otherwise result from a panic.

PS. Be sure to have an SSD backed log mirror to minimize the write performance impact.

Example:

stmfadm modify-lu -p wcd=true <Lun Number here>


[Ellipse Communications]


Richard Jahnel | Senior Network Engineer
Ellipse Communications - Corporate Office
14800 Quorum Dr, Suite 420  Dallas, TX 75254
TF: 888-678-3869 | F: 972-479-9115
Email<mailto:rjahnel at ellipseinc.com> * Website<https://www.ellipseinc.com> * Facebook<https://www.facebook.com/ellipsegroup> * Twitter<https://www.twitter.com/theellipsecow>


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