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32gb ssd enough for bootdrive ?

Started by chaotic_uk, February 17, 2011, 01:28:55 AM

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knighty

if you run out of space, why not not another and raid them ?

back the drive up onto your storage drive, raid the ssd's and then copy tha backup back ?

chaotic_uk

Quote from: knighty on February 17, 2011, 21:06:07 PM
if you run out of space, why not not another and raid them ?

back the drive up onto your storage drive, raid the ssd's and then copy tha backup back ?

still only have 32gb even though it is in raid

Clock'd 0Ne

Not if you RAID 0 them, you would only have 32Gb if you mirrored them (RAID 1)

chaotic_uk


knighty


chaotic_uk

well in that case i will order another monday , erm when did the forum colours change lol  :w00t:

matt5cott


chaotic_uk

Quote from: matt5cott on February 18, 2011, 00:40:58 AM
afaik TRIM doesn't work under RAID.

i did not know that  :dunno: , thx for the info  ;)

chaotic_uk

here is a benchmark i tried with the OCZ Onyx Series SATA II 2.5" SSD 32gb in raid 0 , not to bad tbh and the more you add the faster it gets





video review of 8 of them in raid 0 = http://www.youtube.com/watch?v=BZ-lpxDCVhQ&feature=channel

knighty

#24
in the vid you linked to it says...

"Remember that while TRIM doesn't work in RAID, garbage collection will, so as long as you leave the array idle sometimes, performance should not degrade."

no idea what garbage collection is.... but sounds like that should sort it ?

edit:
http://hothardware.com/News/OCZ-and-Indilinx-Collaborate-On-New-SSD-Garbage-Collection-Scheme/

sounds like that takes care of it ?

chaotic_uk


knighty

the drives degrade over time... a bit like compact flash cards used to (do they still do that?)

there's a limited number of times you can write/overwrite each sector... it's a big number... but old hard drives normally keep overwriting the same bit again and again...

the trim feature stops it doing that... it won't overwrite old deleted data until all the free space has been used up, and then it overwrites the deleted stuff in order....

you don't see/notice any of this tho, it just works/looks like any other hard drive to the user

DEViANCE

#27
I've got 2x30gb ocz vertex ssds in raid0

they are very fast although I was hoping for faster, the write speeds dont seem to increase much in raid on the early ssds.

I have win7 ultimate 64bit, office 2010, general untils and a couple of games installed on it and I am at 40.5GB so 32gb might be a bit small.

I've not seen any slow down on the drives but I have left teh computer in the bios for a few hours a couple of times to let the 'garbage collection' happen whatever it is.

edit: I was being stupid the 40.5GB is free space  :-[

knighty

do you need to be in the bios for garbage collection ?  does it work if the pc it just left running ?

mines on 24/7....

DEViANCE

yeah i think it works windows as long as the drive is not used for PF and windows isnt set to switch it off after so much idle time.

the drive needs to be completely idle for it to work afaik.