Hey guys,

Iam usign linux-iscsi currently on a centos 4.5 box (kernel
2.6.9-67.0.22.ELsmp). The target is a Hitachi WMS 100 with three
logical drives. Iam trying to find teh best upgrade path to open-isci
for the below setup.

linux-iscsi connects to the WMS 100 over two different network paths
and multipath is being used over this.

hitachi03 (36000000000000000043b8bff00000002)
[size=943 GB][features="0"][hwhandler="0"]
\_ round-robin 0 [active]
 \_ 4:0:0:2 sdf 8:80 [active][ready]
 \_ 3:0:0:2 sdg 8:96 [active][ready]

hitachi02 (36000000000000000043b8bff00000001)
[size=2047 GB][features="0"][hwhandler="0"]
\_ round-robin 0 [prio=2][active]
 \_ 4:0:0:1 sdd 8:48 [active][ready]
 \_ 3:0:0:1 sde 8:64 [active][ready]

hitachi01 (36000000000000000043b8bff00000000)
[size=2047 GB][features="0"][hwhandler="0"]
\_ round-robin 0 [active]
 \_ 4:0:0:0 sdb 8:16 [active][ready]
 \_ 3:0:0:0 sdc 8:32 [active][ready]

* These three multipath disks are added to a LVM volume group. LVs
created from this VGs are targets in ietd and a few servers use this
targets for storage.
* So to upgrade to open-iscsi, i think i just have to stop linux-
iscsi, uninstall it, install latest open-iscsi and configure the
targets again. Iam assuming multipath settings, LVM VG's and LVs will
remain unchanged.

Will the device maps change and is there any possibility of problems
with LVM VGs and LVs post moving to open-iscsi ?


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