4x 80gb or 2x 250gb raid0?

daven1986

daven1986

daven1986

Soldato
Joined
29 Oct 2005
Posts
3,298
hi guys,

just want to confirm that the 4x 80gb will give best raid0 performance no matter what 250gb drives i get? hoping to have 4x 80gb raid0 backed up onto 1x 250gb and then have a 500gb for storage.

thanks

daven
 
why are you backing 80gb onto 250gb? If you are using raid 5 it will look like 1 drive, you wont be able to put extra onto the 250gb so your effectivily turning it into a 80gb drive. Well i beleive so anyway, im not overly clued up on raid.
 
8igdave said:
why are you backing 80gb onto 250gb? If you are using raid 5 it will look like 1 drive, you wont be able to put extra onto the 250gb so your effectivily turning it into a 80gb drive. Well i beleive so anyway, im not overly clued up on raid.
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Striping 4x80gb would give 320gb or at least somewhere approaching it (closer to 300gb once the difference between manufacturers ideas of a gb and what an OSes idea is). The way I read it is that there will be a 4 drive Raid0 array of about 300gb and then that will be backed up (manually) onto the 250gb drive as and when.

Bit of a risky strategy relying on all 4 drives working together possibly but provided the data isn't hugely important and regular backups are being done it shouldn't be a major problem.
 
semi-pro waster said:
Striping 4x80gb would give 320gb or at least somewhere approaching it (closer to 300gb once the difference between manufacturers ideas of a gb and what an OSes idea is). The way I read it is that there will be a 4 drive Raid0 array of about 300gb and then that will be backed up (manually) onto the 250gb drive as and when.

Bit of a risky strategy relying on all 4 drives working together possibly but provided the data isn't hugely important and regular backups are being done it shouldn't be a major problem.
Click to expand...

yeah you have the idea. may increase the 250gb to be 320gb or 500gb. well the data is going to be OS and games and apps. maybe i should put a raid5 on there instead to have the extra protection.

either way 4x 80 is going to be faster than 2x250 isnt it?

thanks
 
perhaps raid 5 with 80gb hard drives and spend the money saved on the 250gb on getting a 750gb instead? Automatic back up then. What you doing to do 4 hard drives which are only 80gb in raid 0 anyway?
 
Its not backing up because the other hdd could die. But you will get a warning if it does and its unlikely one of the 4 hard drives and the 5th one will die at the same time. I serpose you could get a power serge but thats what a power serge protector is for and another reason to buy a decent psu.

Just like an external hard drive can be damage, dvds can be lost etc. Its good enough backing up unless you have extremely important stuff taht at all costs cant be lost.

If hes willing to run 4 disks and wanted to back it up onto a sep[areate 250gb one. Im sure hes not bothered about having the ut must secure backing up.
 
hoping to have 4x 80gb raid0
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Bad idea, the possibility of 1 HDD failing in some way (thus destroying your RAID0 setup) is quite real....I would be inclined to go RAID5 (4 x HDDs in RAID5 will give you a transfer rate the same as 3 HDDs in RAID0), or 2 HDD in RAID0 with another HDD for backup. :)
 
jbloggs said:
Bad idea, the possibility of 1 HDD failing in some way (thus destroying your RAID0 setup) is quite real....I would be inclined to go RAID5 (4 x HDDs in RAID5 will give you a transfer rate the same as 3 HDDs in RAID0), or 2 HDD in RAID0 with another HDD for backup. :)
Click to expand...

tis what i was thinking,

thanks
 
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