We are running out of space on our SAN, for backups, and are looking to add another hard drive cage. We use our SAN for files storage and Vmware hard drive space. We currently have the following installed at our faciltiy.
1. HP Prolient DL320 G5.
2. 16 port Fiber SAN Switch.
a. HP StorageWorks 4/8 SAN Switch.
3. HP StorageWorks MSA 1500 CS.
4. HP StorageWorks MSA 20.
a. 12-Sata Drives (all drives are used).
b. All Sata Drives are 500 GB.
c. However only have 4X500 GB Sata drives being used for backups.
i. Hence we use 1.5 TB for backups.
d. The remaining 8 hard drives are set in raid-5 for the 'Production' partition.
My question is if we purchase another HP StoreageWorks MSA20 hard drive cage (so we can add storage space to our existing backup and production setup), will we need to Setup a separate Raid-5 partition on the new MSA 20? Also will we need to setup a new Raid-5 partition array, for the 'production' side, on the new HP Storageworks MSA 20 cage?
Or can those extra drives be added to the already existing raid-5 configuration? Keep in mind that this will be on a brand new MSA 20 Hard drive cage.