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Old Mar 11, 2012, 02:26 PM   #1
allthingschris
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Upgrading a Pegasus Promise RAID?

Has anybody had any experience upgrading the drives in a Pegasus Promise RAID?

My current setup is the 6x2TB model, but I'm running low on space. I'm considering buying 4TB drives to replace each of the 2TB drives.

1) The cheapest drives are Seagate 4TB external drives. But conceivably I could just take these drives out of their enclosures?

2) The other alternative is 4TB Hitachi disks but they're considerably pricier.

Any thoughts, feedback or advice? Thanks in advance!
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Old Mar 11, 2012, 08:40 PM   #2
JesterJJZ
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Don't quote me, but I thought I read something somewhere about the R6 only being able to use up to 2TB disks to remain stable. Something about the firmware. I'm sure it will be addressed at some point.
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Old Mar 11, 2012, 11:23 PM   #3
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I don't think Promise is using enterprise drive and if they really don't just get their cheap 4 bay TB RAID and swap out with Hitachi Enterprise drive.
Don't take any chances on the RAID.
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Old Mar 12, 2012, 01:12 AM   #4
flynz4
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Quote:
Originally Posted by allthingschris View Post
Has anybody had any experience upgrading the drives in a Pegasus Promise RAID?

My current setup is the 6x2TB model, but I'm running low on space. I'm considering buying 4TB drives to replace each of the 2TB drives.

1) The cheapest drives are Seagate 4TB external drives. But conceivably I could just take these drives out of their enclosures?

2) The other alternative is 4TB Hitachi disks but they're considerably pricier.

Any thoughts, feedback or advice? Thanks in advance!
I just checked the Promise compatibility list. They list only the Hitachi 1TB and 2TB drives at this time. They also state they only recommend enterprise class drives.
Quote:
In RAID storage system, we recommend user to use enterprise level hard drive, which has much better command timeout control and more reliable to vibration for critical application.
Personally, I would not use consumer drives in a RAID array. Your most conservative next step would be to buy a second R6 and chain them. It would not be cheap... but if you have that much data, then something must give.

A cheaper solution would be to get a cheap 3TB or 4TB usb drive an move some non-critical data (if any) to the slower devices.

/Jim
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Old May 6, 2012, 07:27 PM   #5
uvitor
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Anyone tried the new pegasus firmware with 3 or 4tb drives?
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Old Nov 17, 2012, 12:41 PM   #6
dia3olik
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any news!??!
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Old Dec 10, 2012, 11:21 PM   #7
askbjoernhansen
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Originally Posted by dia3olik View Post
any news!??!
The compatibility list now have a 3TB Seagate drive (ST3000DM001 in two different flavors).
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Old Sep 4, 2013, 06:47 PM   #8
cinemaloha
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I'm on the same boat, space is running out and needing more.

Good news, though! The latest compatibility list is out and 4 TB Seagate ST4000DM000 drive was added.

Here's a good thread on it: http://forums.macrumors.com/showthread.php?t=1622419
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Old Jan 10, 2014, 07:17 AM   #9
anais.leroux
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I am about to upgrade my Pegasus R6 drives too, and I want to reuse the old ones as individual drives (placed in a dock).
But I am not sure how to do this.

Should I go into the Promise Utility and change each physical drive's setting to "PassThru configuration", and then take them out ?
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