Re: [Users] way to edit iSCSI storage domain?
Yuriy Demchenko:
Hi,
is there any way to edit iSCSI storage domain: change/add targets ?
(lun, id, sn and actual content wouldn't be affected) Without VM
export/import process - downtime should be as little as possible.
I'm researching possibility to use oVirt in env where I have only FC
storage, connected to 2 servers (and sadly, second server will be
available later, hence my question about changing targets in oVirt)
and bunch of blades, on which i would like to run virtualization (no
fc storage connectivity) - so idea is to share storage via iSCSI/tgtd
and use multipathd with failover mode to protect from storage
I am not sure if the
multipathd can recognize the FC path to the storage
when the second server is available and regards it as the same as the
iSCSI path used before. If it is not, I think the device under
/dev/mapper may change when you cut the iSCSI path off and then enable
FC path. That will definitely corrupt the meta data of the volume group
which the storage domain is sitting on and the storage domain will be
corrupted finally.
corruption.
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舒明 Shu Ming
Open Virtualization Engineerning; CSTL, IBM Corp.
Tel: 86-10-82451626 Tieline: 9051626 E-mail: shuming(a)cn.ibm.com or
shuming(a)linux.vnet.ibm.com
Address: 3/F Ring Building, ZhongGuanCun Software Park, Haidian District, Beijing 100193,
PRC