Hi,
I'm quite new to solaris, and I'd like to do a zfs pool of an iscsi
device. What is the good way of doing so:
0) The big Question is :
How can I achieve an exportation of a whole disk with iscsi. In a manner
that I can clearly use it in a zpool alternatively through iscsi or
directly attached ?
# on iscsi target
# ---------------
1) first of all I'll show you the HD configuration
format
0. c0d0 <DEFAULT cyl 4862 alt 2 hd 255 sec 63>
/[EMAIL PROTECTED],0/[EMAIL PROTECTED],1/[EMAIL PROTECTED]/[EMAIL
PROTECTED],0
1. c1d0 <ST315320-3CW0G0X-0001-14.25GB>
/[EMAIL PROTECTED],0/[EMAIL PROTECTED],1/[EMAIL PROTECTED]/[EMAIL
PROTECTED],0
1
partition
print
Current partition table (original):
Total disk sectors available: 29871790 + 16384 (reserved sectors)
Part Tag Flag First Sector Size Last Sector
0 usr wm 34 14.24GB 29871790
1 unassigned wm 0 0 0
2 unassigned wm 0 0 0
3 unassigned wm 0 0 0
4 unassigned wm 0 0 0
5 unassigned wm 0 0 0
6 unassigned wm 0 0 0
8 reserved wm 29871791 8.00MB 29888174
2) the tries
I've try to export through iscsi the whole c1d0 without success
#iscsitadm create target --lun 0 -b /dev/dsk/c1d0 vol-2
and get :
iscsitadm: Error Failed to create backing store
3) the thoughts
maybe I've have to remove the partition and some how try to ask solaris
to just see the HD as a whole disk (in linux see it as hda, and not hda1)
4) the non so happy tries
after many tries I've made something working:
iscsitadm create target --lun 0 --type disk \
--backing-store /dev/dsk/c1d0s0 vol-2
but it's not what I was wishing to have:
because when I loopback use it:
iscsiadm add discovery-address 127.0.0.1
devfsadm -i iscsi
format
0. c0d0 <DEFAULT cyl 4862 alt 2 hd 255 sec 63>
/[EMAIL PROTECTED],0/[EMAIL PROTECTED],1/[EMAIL PROTECTED]/[EMAIL
PROTECTED],0
1. c1d0 <ST315320-3CW0G0X-0001-14.25GB>
/[EMAIL PROTECTED],0/[EMAIL PROTECTED],1/[EMAIL PROTECTED]/[EMAIL
PROTECTED],0
2. c2t0100000BCDDD397000002A0046372530d0 <SUN-SOLARIS-1-14.24GB>
/scsi_vhci/[EMAIL PROTECTED]
and then create a zpool with it:
zpool create mtank c2t0100000BCDDD397000002A0046372530d0
and then if I ``un-iscsi'' it !
zpool export mtank
iscsiadm remove discovery-address 127.0.0.1
iscsitadm delete target --lun 0 vol-2
and then I try to re-use directly the c1d0 with no success :(
zpool import mtank
cannot import 'mtank': no such pool available
OUCh !
5) some more details with zdb -l
zdb -l /dev/rdsk/c1d0
--------------------------------------------
LABEL 0
--------------------------------------------
failed to unpack label 0
--------------------------------------------
LABEL 1
--------------------------------------------
failed to unpack label 1
--------------------------------------------
<snip>
zdb -l /dev/rdsk/c1d0s0
--------------------------------------------
LABEL 0
--------------------------------------------
failed to unpack label 0
--------------------------------------------
LABEL 1
--------------------------------------------
failed to unpack label 1
--------------------------------------------
LABEL 2
--------------------------------------------
version=3
name='mtank'
state=2
txg=4255
pool_guid=4446329412636080064
top_guid=17332860804733444632
guid=17332860804733444632
vdev_tree
type='disk'
id=0
guid=17332860804733444632
path='/dev/dsk/c1d0s0'
devid='id1,[EMAIL PROTECTED]/a'
whole_disk=1
metaslab_array=14
metaslab_shift=27
ashift=9
asize=15289548800
--------------------------------------------
LABEL 3
--------------------------------------------
version=3
name='mtank'
state=2
txg=4255
pool_guid=4446329412636080064
top_guid=17332860804733444632
guid=17332860804733444632
vdev_tree
type='disk'
id=0
guid=17332860804733444632
path='/dev/dsk/c1d0s0'
devid='id1,[EMAIL PROTECTED]/a'
whole_disk=1
--
Cedric BRINER
Geneva - Switzerland
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