If you have a support contract for your arrays, you may be able to contact you Dell sales rep to see if they can get you a loaner array. Another option would be to see if you have a group that has very little data on it (and/or low usage). Take the data off of this group (backup/restore to another group).  Or instead of the backup/restore, you could create a volume in another group, and attach it to the same server via iSCCI, then move the data that way (for example). Once you have the data off of one group, you can reset that array (has no data now), reconfigure it with the new disks, and then use it as your “rolling” update array (i.e., add it to the group and same pool for the arrays you need to update the disks on).  This method will take some time to compete; add the member, wait for raid rebuild and data balancing, move the other member to temp pool, reset the now empty member in the temp pool, add disks, reconfigure, add back into the group, etc.). BTW, since these members have unsupported disks, I would prefer that you reset the member once it’s in the temp pool (delete member from group), as opposed to replacing each disk one at a time.  I’m not sure how the firmware will react with unsupported disks, even though no data will be on them once moved to the temp pool. -joe
Hi everyone,we have a bunch of ps4000 with unsupported disks , which we want to replace. we have 8 slots in use , and therefore 8 slots free. can i add the replacement disks in the 8 free slots , create a new storage pool and migrate the member to it? Would that move all the data to the new storage pool including volumes without downtime for our vmfs volumes?   or would i need to create new volumes in the new storage pool and just do a storage vmotion? is it possible at all to have a second storage pool with different size disks and maybe different raid level? look forward for any feedback.thanks, Sergio      
Replacing all disks on ps4000