Tech Support Forum - View Single Post - How to install single drive with data onto Adaptec 31205?

wildpig1234 · 08-23-2009, 04:23 AM

all data recovered as they weren't over written but what a disaster. took a whole wkend almost. anyway, again you can't add a HD to the adaptec without it destroying the existing partition table. The adaptec controller not only redo the partition but it also hide about 526 MB (in this case for a 1 TB HD, maybe even more if bigger hd?) into a separate partition, the purpose i can only guess, (redundancy so you can remap bad sectors when you tell the controller to surface scan?).

After properly setting everything up, while restoring files, i was getting substained speed of about 40 +MB/s. this is writing to a single volume, not raid. can only imagine how much faster things would be with a proper raid. it was definitely writing files to the drives on the adaptec controller faster than writing files to drives on the MB controller

With 256 MB cache, i will just have to remind myself every time to wait at least 20 secs to make sure the cache is emptied to my mounted hd completely if i was writing anything big to the drive before i power down the computer since i don't have the battery pack

oh well, this controller is definitely not for novice or the faint-hearted. Definitely a made for pro product.

08-23-2009, 04:23 AM	#4 (permalink)
wildpig1234 Registered User Join Date: Aug 2009 Posts: 9 OS: XP	Re: How to install single drive with data onto Adaptec 31205? all data recovered as they weren't over written but what a disaster. took a whole wkend almost. anyway, again you can't add a HD to the adaptec without it destroying the existing partition table. The adaptec controller not only redo the partition but it also hide about 526 MB (in this case for a 1 TB HD, maybe even more if bigger hd?) into a separate partition, the purpose i can only guess, (redundancy so you can remap bad sectors when you tell the controller to surface scan?). After properly setting everything up, while restoring files, i was getting substained speed of about 40 +MB/s. this is writing to a single volume, not raid. can only imagine how much faster things would be with a proper raid. it was definitely writing files to the drives on the adaptec controller faster than writing files to drives on the MB controller With 256 MB cache, i will just have to remind myself every time to wait at least 20 secs to make sure the cache is emptied to my mounted hd completely if i was writing anything big to the drive before i power down the computer since i don't have the battery pack oh well, this controller is definitely not for novice or the faint-hearted. Definitely a made for pro product.