I have a Lian Li Ex-50 Raid Array setup to be 4x 2TB WD Black in a Raid5 formatted to HFS+ (journaled).
The raid array is a hardware raid running through a Sil3132 chipset (SATA2 via eSata connection) on a Mac Pro 2008.
I have recently noticed that my Raid is having some trouble streaming data to my projector (I use the raid box as a media server to host the content on) where the video is basically stuttering or pausing in order to cache more data to continue playback.
The connection is via a Cat-6 cable from my Mac Pro to a Netgear Router which then connects with another Cat-6 to the Popcorn Hour C-200 media server, so all bits are cabled, nothing wireless.
Regardless this raid has worked splendidly over the past 6 months but it now starts having trouble supplying the media continuously so I was hoping there was a way to defragment or do some other kind of optimization that would help optimize the read performance for example.
Since this is my first raid array I thought it best to ask your advice before I do something silly to all my data.
- Is it safe to defragment a raid array?
- What other tools to optimize the array are there?
- Any ideas on what could be causing the read/streaming issues?
Thanks a lot for reading, I look forward to your advice.
PS: The Raid5 is 79% full, using 4.34TB and having 1.12TB of free space left.