Re: [CentOS] Multipath and iSCSI Targets

2010-03-20 Thread Drew
Depends on the target and the setup, ideally if you have 4 NICs you should be using at least two different VLANs, and since you have 4 NICs (I assume for iSCSI only) you should use jumbo frames. Jumbo frames should only be used if your CPU can't keep up with the load of 4 NICs otherwise it

Re: [CentOS] Multipath and iSCSI Targets

2010-03-20 Thread Ross Walker
On Mar 20, 2010, at 4:52 PM, Drew drew@gmail.com wrote: Depends on the target and the setup, ideally if you have 4 NICs you should be using at least two different VLANs, and since you have 4 NICs (I assume for iSCSI only) you should use jumbo frames. Jumbo frames should only be used if

[CentOS] Multipath and iSCSI Targets

2010-03-19 Thread Joseph L. Casale
Just started messing with multipath against an iSCSI target with 4 nics. What should one expect as behavior when paths start failing? My lab setup was copying some data on a mounted block device when I dropped 3 of 4 paths and the responsiveness of the server completely tanked for several minutes.

Re: [CentOS] Multipath and iSCSI Targets

2010-03-19 Thread nate
Joseph L. Casale wrote: Just started messing with multipath against an iSCSI target with 4 nics. What should one expect as behavior when paths start failing? My lab setup was copying some data on a mounted block device when I dropped 3 of 4 paths and the responsiveness of the server completely

Re: [CentOS] Multipath and iSCSI Targets

2010-03-19 Thread Ross Walker
On Mar 19, 2010, at 11:12 AM, nate cen...@linuxpowered.net wrote: Joseph L. Casale wrote: Just started messing with multipath against an iSCSI target with 4 nics. What should one expect as behavior when paths start failing? My lab setup was copying some data on a mounted block device