I just walked into a new job that has an Xraid and I am rather unfamiliar with Apple server products in general and would like to verify something with the crowd:
First some background:
In RAID Admin, it shows that there are 14 drives, each 698.63GB. Google shows that these hard drive models are 750GB. Question about this in a sec.
RAID Admin shows that these drives are in two Arrays of seven drives each, both RAID 0.
Finally, the Events tab of RAID Admin shows that a couple of months ago, there was an error:
Disk 9 Reported An Error. COMMAND:0x25 ERROR:0x49 STATUS:0x51 LBA:0x57464218.
A couple of days later, there is an event
Error Status Cleared Using Service ID Button
Currently, no non-green lights are showing on the front of the Xraid.
I know my RAID, but not SANs in general (LUNs, etc) nor Xraid or its interfaces. I can see in this interface no indication that the two arrays are mirrored against each other, but I am not familiar enough with the interface to really know for certain. Am I missing either a different tool/interface or missing a basic assumption of Xraid here? Is this really saying that this Xraid is running entirely striped with no redundancy at all?!? Fast it would be, yes, but that sounds a bit crazy and just wanted to verify that I am not missing a key piece of data here.
If there is no mirroring or other redundant use, where is that last 50GB per drive going?
And the big one: Checking around online (including these forums), this drive error indicates that things are not critical but that the drive ought to be replaced reasonably soon. If this were a nice redundant array I could just hot swap out a drive and all would be well. However, if this has no redundancy, removing a drive from a RAID 0 array is a Bad Idea. What would you recommend?
Thanks in advance for any light you can shed on this for an experienced sysadmin but a newbie to this specific technology!