Hi. We have an HP MSA1500 CS SAN with 14 x 146GB 15K HDDs.
This is being accessed by 2 virtual servers running ESXi (I forgot what version).
We need to add more space but all of the HDD bays are in use.
I was thinking about replacing all or some of the 146GB 15K HDDs with 300GB HDDs.
1) Is it even possible to install SOME 300GB drives? Or do all 14 need to be the same?
2) I don't know what RAID configuration the SAN is using and I don't know how to access it. Is it only accessible via CLI through the VMware hosts?
3) We have about 7 virtual machines across the 2 hosts. I'm guessing if we were to up the size of the storage pool by adding larger HDDs, we'd have to break/delete/recreate the RAID. Is this accurate?
4) Assuming question 3 is accurate, would creating backup images of each virtual machine and restoring them onto the recreated storage pool be a possibility?
I may have a few more questions based on the replies.