4 x 6 TB on TS-412
-
- Starting out
- Posts: 11
- Joined: Sat Aug 13, 2011 12:22 am
4 x 6 TB on TS-412
Yes, I know, this is not officially supported. But I guess there must be a way on the shell level to use 4 x 6 TB HDDs - even when not using all of the storage.
Does anyone know how to set up a RAID-5 oder RAID-6 with 15.9TB capacity?
Thanks for any support!
Does anyone know how to set up a RAID-5 oder RAID-6 with 15.9TB capacity?
Thanks for any support!
- dolbyman
- Guru
- Posts: 35273
- Joined: Sat Feb 12, 2011 2:11 am
- Location: Vancouver BC , Canada
Re: 4 x 6 TB on TS-412
of course it works, ... you just have to enter the command
but don't tell anyone ... (like all those people that tried before)
Code: Select all
sudo $$$ -new_device
- OneCD
- Guru
- Posts: 12146
- Joined: Sun Aug 21, 2016 10:48 am
- Location: "... there, behind that sofa!"
-
- Starting out
- Posts: 11
- Joined: Sat Aug 13, 2011 12:22 am
Re: 4 x 6 TB on TS-412
Well, I might try the $$$ option, if everything else failed.
Seriously, isn't it possible using mdadm, tune2fs, mkfs etc to create a RAID filesystem, that stays right below the 16TB limit?
Seriously, isn't it possible using mdadm, tune2fs, mkfs etc to create a RAID filesystem, that stays right below the 16TB limit?
- Spider99
- Experience counts
- Posts: 1951
- Joined: Fri Oct 21, 2011 11:14 pm
- Location: UK
Re: 4 x 6 TB on TS-412
Nope
Tim
TS-853A(16GB): - 4.3.4.0483 - Static volume - Raid5 - 8 x 4TB HGST Deskstar NAS
Windows Server + StableBit Drivepool and Scanner ~115 TB Backup Server
TS-412 & TS-459 Pro II: Retired
Clients: 3 x Windows 10 Pro(64bit)
TS-853A(16GB): - 4.3.4.0483 - Static volume - Raid5 - 8 x 4TB HGST Deskstar NAS
Windows Server + StableBit Drivepool and Scanner ~115 TB Backup Server
TS-412 & TS-459 Pro II: Retired
Clients: 3 x Windows 10 Pro(64bit)
-
- Been there, done that
- Posts: 898
- Joined: Mon Jun 03, 2013 3:33 am
Re: 4 x 6 TB on TS-412
open up the drives and take out a platter in each one ....
Production :
TVS-673 4.3.4 0387
4 X 3TB WD RED : 1 X 4TB HGST DESKSTAR R5
32GB
LAN-10G1SR-D, FiberHal for Cisco SFP-10G-SR
NETGEAR ProSAFE SS3300-28X
Backup :
TS-469L 4.3.4 0387
4 X 3TB WD RED R5
3GB
Located detached garage .. cheap offsite solution ...
2nd TS-469L awaiting drives and reassignment for front-line duty .......
TVS-673 4.3.4 0387
4 X 3TB WD RED : 1 X 4TB HGST DESKSTAR R5
32GB
LAN-10G1SR-D, FiberHal for Cisco SFP-10G-SR
NETGEAR ProSAFE SS3300-28X
Backup :
TS-469L 4.3.4 0387
4 X 3TB WD RED R5
3GB
Located detached garage .. cheap offsite solution ...
2nd TS-469L awaiting drives and reassignment for front-line duty .......
- Spider99
- Experience counts
- Posts: 1951
- Joined: Fri Oct 21, 2011 11:14 pm
- Location: UK
Re: 4 x 6 TB on TS-412
and just shave a bit off the edge - just try and keep your finger prints off the drive as it might affect read/writes
Tim
TS-853A(16GB): - 4.3.4.0483 - Static volume - Raid5 - 8 x 4TB HGST Deskstar NAS
Windows Server + StableBit Drivepool and Scanner ~115 TB Backup Server
TS-412 & TS-459 Pro II: Retired
Clients: 3 x Windows 10 Pro(64bit)
TS-853A(16GB): - 4.3.4.0483 - Static volume - Raid5 - 8 x 4TB HGST Deskstar NAS
Windows Server + StableBit Drivepool and Scanner ~115 TB Backup Server
TS-412 & TS-459 Pro II: Retired
Clients: 3 x Windows 10 Pro(64bit)
-
- Starting out
- Posts: 11
- Joined: Sat Aug 13, 2011 12:22 am
Re: 4 x 6 TB on TS-412
Well, believe it or not, but using only command line tools, I was able to create a RAID-6 with a usable size of 15,6 TB based on the four 6TB hard disks. So I lost an overall of 2TB usable space which is acceptable to me.
I am now starting to fill it up to the last byte and verify the integrity of the data written. This will take about 48 hours.
I am now starting to fill it up to the last byte and verify the integrity of the data written. This will take about 48 hours.
-
- Been there, done that
- Posts: 898
- Joined: Mon Jun 03, 2013 3:33 am
Re: 4 x 6 TB on TS-412
raid6 with 4x6tb is only 10.8 tb .........
Production :
TVS-673 4.3.4 0387
4 X 3TB WD RED : 1 X 4TB HGST DESKSTAR R5
32GB
LAN-10G1SR-D, FiberHal for Cisco SFP-10G-SR
NETGEAR ProSAFE SS3300-28X
Backup :
TS-469L 4.3.4 0387
4 X 3TB WD RED R5
3GB
Located detached garage .. cheap offsite solution ...
2nd TS-469L awaiting drives and reassignment for front-line duty .......
TVS-673 4.3.4 0387
4 X 3TB WD RED : 1 X 4TB HGST DESKSTAR R5
32GB
LAN-10G1SR-D, FiberHal for Cisco SFP-10G-SR
NETGEAR ProSAFE SS3300-28X
Backup :
TS-469L 4.3.4 0387
4 X 3TB WD RED R5
3GB
Located detached garage .. cheap offsite solution ...
2nd TS-469L awaiting drives and reassignment for front-line duty .......
- dolbyman
- Guru
- Posts: 35273
- Joined: Sat Feb 12, 2011 2:11 am
- Location: Vancouver BC , Canada
Re: 4 x 6 TB on TS-412
yup raid 6 is n-2 ..that should have worked without any "command line magic"
how is the performance ?
how is the performance ?
-
- Starting out
- Posts: 11
- Joined: Sat Aug 13, 2011 12:22 am
Re: 4 x 6 TB on TS-412
Sorry, I meant RAID-5.
But my initial question was, if I could use this configuration for RAID-5 or -6, and everybody agreed that this will never work. Now what? Suddenly RAID-6 can be done easily without command line magic? At least not on my TS-412...
I can report performance after the data test.
But my initial question was, if I could use this configuration for RAID-5 or -6, and everybody agreed that this will never work. Now what? Suddenly RAID-6 can be done easily without command line magic? At least not on my TS-412...
I can report performance after the data test.
- Spider99
- Experience counts
- Posts: 1951
- Joined: Fri Oct 21, 2011 11:14 pm
- Location: UK
Re: 4 x 6 TB on TS-412
with 10.8 you have raid6 ie 2x5.4
if you had raid5 it would have been over 16tb ~16.2
so not sure what your magic was but i think you might need to start again to test your theory
if you had raid5 it would have been over 16tb ~16.2
so not sure what your magic was but i think you might need to start again to test your theory
Tim
TS-853A(16GB): - 4.3.4.0483 - Static volume - Raid5 - 8 x 4TB HGST Deskstar NAS
Windows Server + StableBit Drivepool and Scanner ~115 TB Backup Server
TS-412 & TS-459 Pro II: Retired
Clients: 3 x Windows 10 Pro(64bit)
TS-853A(16GB): - 4.3.4.0483 - Static volume - Raid5 - 8 x 4TB HGST Deskstar NAS
Windows Server + StableBit Drivepool and Scanner ~115 TB Backup Server
TS-412 & TS-459 Pro II: Retired
Clients: 3 x Windows 10 Pro(64bit)
-
- Guru
- Posts: 13192
- Joined: Sat Dec 29, 2007 1:39 am
- Location: Stockholm, Sweden (UTC+01:00)
Re: 4 x 6 TB on TS-412
No your initial question was exactly this:Raki wrote:But my initial question was, if I could use this configuration for RAID-5 or -6...
Does anyone know how to set up a RAID-5 oder RAID-6 with 15.9TB capacity?
- Apparently nobody here know how to set up a capacity limited RAID 5. I think very, very few would even consider to use an unsupported configuration as their data storage which could explain the limited experience with the configuration.
- Absolutely nobody knows how to setup a 4*6 TB in RAID 6 to give you 15.9 TB usable capacity, as anything above 10.8 TB would be magic.
If you don't know the difference between RAID 5 and RAID 6, then read about it in the documentation and ask here if you have any questions.
RAID have never ever been a replacement for backups. Without backups on a different system (preferably placed at another site), you will eventually lose data!
A non-RAID configuration (including RAID 0, which isn't really RAID) with a backup on a separate media protects your data far better than any RAID-volume without backup.
All data storage consists of both the primary storage and the backups. It's your money and your data, spend the storage budget wisely or pay with your data!
A non-RAID configuration (including RAID 0, which isn't really RAID) with a backup on a separate media protects your data far better than any RAID-volume without backup.
All data storage consists of both the primary storage and the backups. It's your money and your data, spend the storage budget wisely or pay with your data!
-
- Starting out
- Posts: 11
- Joined: Sat Aug 13, 2011 12:22 am
Re: 4 x 6 TB on TS-412
Do you know the meaning of the word TYPO?!P3R wrote:If you don't know the difference between RAID 5 and RAID 6, then read about it in the documentation and ask here if you have any questions.
Well, anyway, here's the result. The 15,6 TB RAID-5 works well. All data written were readable without any problem. Read performance is about 31 MB/s, Write is about 25 MB/s. There are some quite heavy background transcoding processes, so performance is probably not representing the possible maximum.
Thanks for your support!
-
- Guru
- Posts: 13192
- Joined: Sat Dec 29, 2007 1:39 am
- Location: Stockholm, Sweden (UTC+01:00)
Re: 4 x 6 TB on TS-412
Yes I do.Raki wrote:Do you know the meaning of the word TYPO?!
Many that come to this forum have problems understanding RAID levels and when you multiple times write things that are incorrect about the characteristics of a RAID level, I can't help getting the impression that you may be a little confused about it. If you aren't, that's good for you but remember that we know nothing about you. What you write here is the only thing we have to get an idea of your knowledge and experience.
It would be extremely surprising if that had failed and that's not what I'd worry about using a non-supported RAID configuration.All data written were readable without any problem.
RAID have never ever been a replacement for backups. Without backups on a different system (preferably placed at another site), you will eventually lose data!
A non-RAID configuration (including RAID 0, which isn't really RAID) with a backup on a separate media protects your data far better than any RAID-volume without backup.
All data storage consists of both the primary storage and the backups. It's your money and your data, spend the storage budget wisely or pay with your data!
A non-RAID configuration (including RAID 0, which isn't really RAID) with a backup on a separate media protects your data far better than any RAID-volume without backup.
All data storage consists of both the primary storage and the backups. It's your money and your data, spend the storage budget wisely or pay with your data!