On Wed, Jan 20, 2010 02:38 PM, Thomas Burgess <wonsl...@gmail.com> wrote:
> I finally got iscsi working, and it's amazing...it took a minute for me to
> figure out...i didn't realize it required 2 tools....but anyyyywyays.
>
> my original zvol is too small....i created a 120 gb zvol for time machine
> but i really need more like 250 gb so this is a 2 part questions.
>
> First, can i make the zvol/iscsi drive bigger...and also, let's assuming i
> can't (and just for my general knowledge) how can i delete the comstar iscsi
> volume? I noticed zfs destroy won't work if it's shared iscsi even if i try
> to force it (i was hoping it would just destroy it and i could make a new
> one)
Yes you can. Size of the vol is a ZFS property.
-bash-3.2# zfs get all datapool/stores/axigen/lun2
NAME PROPERTY VALUE SOURCE
datapool/stores/axigen/lun2 type volume -
datapool/stores/axigen/lun2 creation Sun Sep 27 21:40 2009 -
datapool/stores/axigen/lun2 used 250G -
datapool/stores/axigen/lun2 available 516G -
datapool/stores/axigen/lun2 referenced 87.1G -
datapool/stores/axigen/lun2 compressratio 1.00x -
datapool/stores/axigen/lun2 reservation none
default
datapool/stores/axigen/lun2 volsize 250G -
datapool/stores/axigen/lun2 volblocksize 4K -
datapool/stores/axigen/lun2 checksum on
default
datapool/stores/axigen/lun2 compression off
default
datapool/stores/axigen/lun2 readonly off
default
datapool/stores/axigen/lun2 shareiscsi off
default
datapool/stores/axigen/lun2 copies 1
default
datapool/stores/axigen/lun2 refreservation 250G local
datapool/stores/axigen/lun2 primarycache all
default
datapool/stores/axigen/lun2 secondarycache all
default
datapool/stores/axigen/lun2 usedbysnapshots 0 -
datapool/stores/axigen/lun2 usedbydataset 87.1G -
datapool/stores/axigen/lun2 usedbychildren 0 -
datapool/stores/axigen/lun2 usedbyrefreservation 163G -
Set the volsize property to what you want then, then modify the
logical unit e.g.
Usage: stmfadm modify-lu [OPTIONS] <LU-name>
OPTIONS:
-p, --lu-prop <logical-unit-property=value>
-s, --size <size K/M/G/T/P>
-f, --file
Description: Modify properties of a logical unit.
Valid properties for -p, --lu-prop are:
alias - alias for logical unit (up to 255 chars)
mgmt-url - Management URL address
wcd - write cache disabled (true, false)
wp - write protect (true, false)
You will probably want to offline your target before making these changes.
Now of course, this doesn't mean the space is immediately usable on the target
host. If it's Windows you can use diskpart extend. If it's Linux, then you may
need another method depending upon the file system.
-Errol
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