Search found 9 matches

by tancaptim
Mon Feb 21, 2011 6:28 pm
Forum: KernSafe iSCSI SAN
Topic: Feature Request for HA Sync
Replies: 2
Views: 8258

Re: Feature Request for HA Sync

I'd agree having some kind of multiple-link / load balancing would be nice, but it doesn't appear that is where the performance bottleneck is currently. For example when doing a verify there is relatively little network traffic (checksum values are all that are being passed?), but performance is now...
by tancaptim
Sat Jan 29, 2011 5:07 pm
Forum: KernSafe iSCSI SAN
Topic: Proper Multipath Setup for XenServer 5.6 FP1
Replies: 6
Views: 15006

Re: Proper Multipath Setup for XenServer 5.6 FP1

After running a verify and sync it still crashed after the reboot, but has been stable since. The one thing I noticed is that there are six "MirrorDevice" Initiators listed for the target. Is this normal?

Tim
by tancaptim
Thu Jan 27, 2011 10:14 pm
Forum: KernSafe iSCSI SAN
Topic: Proper Multipath Setup for XenServer 5.6 FP1
Replies: 6
Views: 15006

Re: Proper Multipath Setup for XenServer 5.6 FP1

I'm currently using 2.28 beta.
The issue occurs after I reboot the XenServer.

Tim
by tancaptim
Thu Jan 27, 2011 8:09 am
Forum: KernSafe iSCSI SAN
Topic: Proper Multipath Setup for XenServer 5.6 FP1
Replies: 6
Views: 15006

Re: Proper Multipath Setup for XenServer 5.6 FP1

After trying again with 2.28 everything seemed to work fine, but after a reboot of the XenServer it only recognized 1 of 1 paths and any attempt to detach and reattach the storage repository resulted in the iStorageService hanging on one of the servers.

Please advise.

Tim
by tancaptim
Fri Jan 14, 2011 4:03 pm
Forum: KernSafe iSCSI SAN
Topic: Proper Multipath Setup for XenServer 5.6 FP1
Replies: 6
Views: 15006

Proper Multipath Setup for XenServer 5.6 FP1

I tried using the documentation at: http://www.kernsafe.com/tech/iStorage-Server/iStorage-Server-High-Availability-iSCSI-Target-SAN-for-Citrix-XenServer.pdf, but it doesn't work. I set it up exactly as the instructions indicate, but XenServer only sees one path. Is there any updated documentation av...
by tancaptim
Wed Jan 12, 2011 3:21 am
Forum: KernSafe iSCSI SAN
Topic: V2.20 Failover Initial Sync Extreamly Slow
Replies: 3
Views: 9698

Re: V2.20 Failover Initial Sync Extreamly Slow

I'm using image files (standard format) with multiple initiator access enabled.
by tancaptim
Tue Jan 11, 2011 6:29 am
Forum: KernSafe iSCSI SAN
Topic: V2.20 Failover Initial Sync Extreamly Slow
Replies: 3
Views: 9698

V2.20 Failover Initial Sync Extreamly Slow

I have two Ultimate Edition iStorage Servers (one on Windows 2008 and another on Windows 2008 R2). Before setting up the mirror device I verified both iSCSI targets could be seen and transfer data to the other server at decent rates (> 60 MB/s). When I go back and setup the targets for failover (one...
by tancaptim
Mon Dec 13, 2010 4:00 pm
Forum: KernSafe iSCSI SAN
Topic: Post Failover Recovery
Replies: 1
Views: 6719

Post Failover Recovery

If I have 2 iStorage Server nodes with volumes configured for failover, and one node fails. How is the mirror reestablished when the failed node comes back online? Are the virtual disks fully resynced or is some kind of differencing done to only update the portions that changed? I have a couple of f...
by tancaptim
Sat Jul 17, 2010 4:01 pm
Forum: KernSafe iSCSI SAN
Topic: Mac OS 10.6 Initiator
Replies: 1
Views: 6153

Mac OS 10.6 Initiator

Is there an iSCSI initiator for Mac OS 10.6 available that works well with iStorage Server 2? I've tried GlobalSAN's, but it hangs about 1/4 the way through when creating a new partition map.