Replacing G-RAID drives with bigger capacity disks.

Storage & Archiving

Replacing G-RAID drives with bigger capacity disks.

Posted by Karel Voners on March 5, 2015 at 1:42 pm

I’m looking to change the 2 3TB drives of a 6TB G-Raid model to 2 x 4TB drives.

Does anyone know if they prevent you from doing that by designing the raid controller to only work with that specific disk capacity/disk model?

Cheers!
K.

Karel Voners replied 11 years, 1 month ago 2 Members · 12 Replies
12 Replies

Rainer Wirth
March 5, 2015 at 4:17 pm

What G-Raid are we talking about?

Normally the big manufacturers have a drive compatibility list (f.e. Sonnet or Promise).
I couldn’t find one with G-Tech.
The two bay Raid is sold with 4TB and 8TB.
I would look what Discs they use and would put the same (f.e. Hitachi Ultrastar) two 4TB Discs instead of the existing 2TB models in it. To me it will work.
What are the numbers of the existing disks ? (f.e. HUA723030ALA640)
cheers

Rainer

factstory
Rainer Wirth
phone_0049-177-2156086
Mac pro 8core
Adobe,FCP,Avid
several raid systems
Karel Voners
March 5, 2015 at 4:36 pm

Thanks for your reply.

I’m talking about the g-raid drives without removable disks. The ones with 2 drives striped together.

https://www.g-technology.com/products/g-raid-duel-drive-storage-system-8-tb

I don’t think there’s a drive compatibility list as they are not officially user replaceable (at least I think).

K.
Rainer Wirth
March 5, 2015 at 4:41 pm

What drives are inside?

cheers

Rainer

factstory
Rainer Wirth
phone_0049-177-2156086
Mac pro 8core
Adobe,FCP,Avid
several raid systems
Karel Voners
March 5, 2015 at 9:02 pm

I just opened one up, this drive is inside:

Hitachi Ultrastar DK7SAD300

https://www.hgst.com/tech/techlib.nsf/techdocs/EF593BD721D5D2768825782D000B8111/$file/DS7K3000_US7K3000_SATA_OEMSpecRev1.3.pdf

Can’t seem to find any references to TLER or something, seems like normal consumer drives.

Thanks for the feedback!

K.
Rainer Wirth
March 6, 2015 at 1:37 pm

The Ultrastar is a enterprise class disk.
You have got the wrong number, Ultrastars are always HUA….

cheers

Rainer

factstory
Rainer Wirth
phone_0049-177-2156086
Mac pro 8core
Adobe,FCP,Avid
several raid systems
Karel Voners
March 6, 2015 at 1:41 pm

You are correct, the manual for DK7SAD300 referenced both deskstar and ultrastar.

Thanks,
K.
Rainer Wirth
March 6, 2015 at 2:46 pm

Look again on the Disk
and search for a number beginning with HUA… or HDS….
HUA is Ultrastar HDS IS Deskstar

cheers

Rainer

factstory
Rainer Wirth
phone_0049-177-2156086
Mac pro 8core
Adobe,FCP,Avid
several raid systems
Karel Voners
March 6, 2015 at 2:57 pm

Hi,

Yes, it says DK7SAD300.

Meaning they are using consumer drives in their raid products…

K.
Rainer Wirth
March 6, 2015 at 3:11 pm

You are right,

ist a Hitachi Deskstar its a HDS723030ALA640. I would put another 2x Deskstar 4TB HDS724040ALE640 in the enclosure. It should work.

cheers

rainer

factstory
Rainer Wirth
phone_0049-177-2156086
Mac pro 8core
Adobe,FCP,Avid
several raid systems
Rainer Wirth
March 6, 2015 at 3:13 pm

But be careful and back up everything. This Raid works with Raid0, so if one drive fails all data is lost – no chance of recovery,

cheers

Rainer

factstory
Rainer Wirth
phone_0049-177-2156086
Mac pro 8core
Adobe,FCP,Avid
several raid systems

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