what is the deal with long build times for raid5 ?
Posted 26 April 2011 - 08:52 PM
Posted 26 April 2011 - 09:42 PM
What is the hardware you are using? 40+ hours does sound a bit excessive.
Mind you 3x 2TB drives is a huge array!
Posted 27 April 2011 - 06:37 AM
You say that as if that should make the process faster. To me, trying to build a RAID array with unformatted disks is (1) surprising it would let you use unformatted disks and (2) not surprising it would take a very long time.
these drives are brand new uninitialized unformated disks
The array does not care if the drive's clusters have saved data, or random 1s and 0s. It is going to attempt to sync each byte of those 2Tb drives, regardless. Not sure how long is normal, but last time I built a RAID (RAID1) using 2 x 500Mb drives, I don't know how long exactly it took, but it was overnight.
Posted 27 April 2011 - 06:55 AM
though there should be an option to create the raid as a dynamic disk to begin with at the firmware level.
but in responce to troy i am using a sil 3132 chipset with a 3726 port multiplier enclosure
the system is managed by silicon images sataraid5 gui
the sad thing is i download so many 1080P tv shows and anime that i think the drive will fill up rather quickly
Edited by mikeloeven, 27 April 2011 - 07:00 AM.
Posted 27 April 2011 - 10:06 AM
Probably a question you should ask of your RAID controller maker. Or, you can always pull the plug on a drive and see what happens. Nothing like a real test to see if it works. If it doesn't, then what good is the RAID? It just wastes disk space. It is like a backup program. No one ever tests to see if the backup will fully recover them - or how to do it.
will that destroy the redundancy or will the array still be able to survive loosing a disk??
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