Re: 2.  That really depends on the version of FW.   For best results, you should be at 5.2.2.   That will deal better with the disparate RAID types.   Using SANHQ to monitor the group is highly recommended.  That will help you determine if splitting into two pools would be better.   Then you have such different RPM speeds, generally, separate pools is better.  You lose some of the benefit of 15K drives since data is striped across the members and the slower drives tend to be larger which tends to mean they get a higher percentage of IO load.   Again 5.2.2 will help mitigate this but my personal preference would be to split them.   Re: 3.  Citrix has three options there.    Storage Repository Adapter,  LVM over iSCSI and Storage Link.   The last one only works with 6.0 and carries and additional cost I believe.   The first one, allows you to allocate space and carve it up via their GUI for each VM.  It will also take EQL snapshots as well.   It creates very unique volume names and descriptions, NEVER manually modify either.  Otherwise you can bring the environment to a halt.  Make sure you have the latest version is you go that route.    LVM over iSCSI  doesn't give you the snapshot creation option.   I have not tried the Storage Link product as of yet.  So I can't offer any advise there.   Last I knew, there was still no MPIO support from their GUI.  At least for SRA or LVM over iSCSI.   Just teaming.  
Hi, I was wondering experts over here could answer few of my questions.  1) Is there a way on a PS6000E to find out how many Raid 5 sets are created with RAID 50 (need this value for write penalty) 2) Any performance implications when RAID 50 (SATA 7.2K Drives) + RAID 10 (SAS 15K) are present in a same pool. 3) Any recommendations on iSCSI setup for XenServer with Dell EqualLogic. Any input is appreciated. -Siva
EqualLogic Newbie questions