Hello Quackattack,  If you have multiple members in the same pool, then by default data for each volume is spread out across the members.  Up to three by default, unless the volume is too large to fit on just three members.  So in the event of a member failure, all volumes in common with that member will go offline until that array is restored to service.  Members in the same pool work together so that will provide the best performance but at a greater risk.  The arrays are highly redundant to prevent that.  Also, members in same pool with swap out blocks to keep the I/O latency in balance between the members.  So a member with lots of I/O will send busy blocks to another member, and take in idle blocks from that member.  Keeping latency in check and space balanced as well.   That's the Advanced Performance Load Balancer.   But if that is a priority then putting them into separate pools would be better.  You would then have to manage the IO loads manually to prevent one pool from being saturated, whiile the others might be idle by comparison.   You can also do a combo.  Put two members in one pool, then another member in another to do syncrep on your most critical volumes. Giving you a balance between too.  Much depends on the load you are expecting to apply to the group.  Also, if you can levarge EQL MPIO enhancements, like MEM for ESXi,  HIT/LE for Linux or HIT/ME for Windows.   Also if you are using ESXi, VMware requires Enterprise or Enterprise+ to run MPIO extensions like MEM.  If you can't use MEM, then this PDF has info on how to improve MPIO fuction using standard VMware Round Robin.  Along with other tips as well.  en.community.dell.com/.../20434601 If you haven't done so already, install SANHQ v3.x to better monitor your group(s).   Regards, 
Hello, I have 3 Dell Equallogic PS6010 Raid 6 Accelerated what is the optimal configuration for performance and reliability. Should i put all the members in the same pool with a few volumes?? using this configuration what if one of the members die in the pool will the volumes still be online?? Or should I have a separate pool for each member and syncrep accross? Thanks!
3 Dell Equallogic PS6010's