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Will I get the benefit if I replace 4TB drives with 6TB
09-04-2016, 12:03 AM
Post: #1
Will I get the benefit if I replace 4TB drives with 6TB
I purchased two Drobo 5D's a little over a year ago. I wanted to fully load each with 6TB drives, but could not afford to. I loaded them with 4 TB drives and was a little surprised to read that the maximum drive space the Drobo could use was something like 14 TB, although I do not remember exactly.

Perhaps I misunderstood. I would like to begin to replace those 4 TB drives with 6 TB's. If I do, will I get the benefit of the extra drive space, or be limited to a total of 14 TB - or whatever it was?

Thank you!
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09-04-2016, 12:46 PM (This post was last modified: 09-04-2016 12:51 PM by AzDragonLord.)
Post: #2
RE: Will I get the benefit if I replace 4TB drives with 6TB
I believe the latest firmware update will allow you to increase the volume size to 64TB ...from the original 16TB. The new volume size would require a Drobo reset though, so make sure your files are backed up first! If you choose NOT to upgrade the firmware, installing larger drives above the volume limit will cause the 5D to create a second 16TB volume.
http://www.drobo.com/start/start-5d/

You would need to install two (or more) 6TB drives to see an increase in usable space.
http://www.drobo.com/storage-products/ca...http://www.drobo.com/storage-products/capacity-c

Drobo (Gen2)
Drobo 5N
=============================
** Praise the Gods, Do Good, Act Bravely. **
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09-04-2016, 01:01 PM
Post: #3
RE: Will I get the benefit if I replace 4TB drives with 6TB
(09-04-2016 12:46 PM)AzDragonLord Wrote:  I believe the latest firmware update will allow you to increase the volume size to 64TB ...from the original 16TB. The new volume size would require a Drobo reset though, so make sure your files are backed up first! If you choose NOT to upgrade the firmware, installing larger drives above the volume limit will cause the 5D to create a second 16TB volume.
http://www.drobo.com/start/start-5d/

You would need to install two (or more) 6TB drives to see an increase in usable space.
http://www.drobo.com/storage-products/ca...http://www.drobo.com/storage-products/capacity-c

Thank you - very helpful! Yet rather complicated. Backing up two Drobos will not prove to be an easy or even practical task. If creating a second TB volume is easy and safe, does not endanger data already there, maybe that is the way I should go.
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09-04-2016, 03:33 PM
Post: #4
RE: Will I get the benefit if I replace 4TB drives with 6TB
Additional volumes are created automatically by the 5D when larger drive capacity exceed the existing volume limit. No effort involved and is completely safe. You can still upgrade the firmware without resetting if you desire, as it will keep with the original 16TB volume size.

Drobo (Gen2)
Drobo 5N
=============================
** Praise the Gods, Do Good, Act Bravely. **
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09-04-2016, 04:54 PM
Post: #5
RE: Will I get the benefit if I replace 4TB drives with 6TB
(09-04-2016 12:46 PM)AzDragonLord Wrote:  I believe the latest firmware update will allow you to increase the volume size to 64TB ...from the original 16TB. The new volume size would require a Drobo reset though, so make sure your files are backed up first! If you choose NOT to upgrade the firmware, installing larger drives above the volume limit will cause the 5D to create a second 16TB volume.
http://www.drobo.com/start/start-5d/

You would need to install two (or more) 6TB drives to see an increase in usable space.
http://www.drobo.com/storage-products/ca...http://www.drobo.com/storage-products/capacity-c

Thank you very much. My understanding is enhanced - though I see I still have much to learn about Drobo. I will also look into skipping the 6 TB step and maybe go straight to 8 TB instead.
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