All data on a 1TB drive unreadable

Grombo · Post by **Grombo** » 01 Jun 2009, 04:05

results are bad so far. i've got about 100gb out of 800 recovered.

Post by **DNR** » 01 Jun 2009, 13:00

I know it doesn't help - but from a network solutions POV, I would recommend that if company X builds up a database of X amount of MB - you have to build a plan to backup/store that data - on more than one HDD.

Regardless of data amount it should always be backed up else where, buy another HDD, copy, and then put that HDD away.

DNR

Grombo · Post by **Grombo** » 02 Jun 2009, 00:49

im considering setting up a RAID system. would any1 recommend/testify for this?

Post by **bad_brain** » 02 Jun 2009, 03:30

well, I am using RAID5 on my system, you need 4 HDDs for it and you have 3/4 of the HDD space available....if you use 4x500GB HDDs you have 1500GB available for example, the rest is used for the parity data.
imo RAID5 is the best option, it's fast AND secure.

if 4 HDDs are too expensive you could use RAID1 with 2 HDDs.

Grombo · Post by **Grombo** » 02 Jun 2009, 03:38

does it matter waht kind of hdd it is?
im thinking of perhaps nicking a 320gb off my dad and using it for my 320

Post by **bad_brain** » 02 Jun 2009, 04:14

well, best is of course when all the HDDs have the same size....because the available space in a RAID5 for example is:

Code: Select all

(number of HDDs -1) x capacity of the smallest HDD

so when using 3x1 TB HDDs and 1x80 GB HDD you would only have 240 GB available.

if using 1 SATA and 1 SATA2 HDD the max. speed will also be limited to the slower one of course...