TS-412 HDD/RAID upgrade

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miskbrebran
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Re: TS-412 HDD/RAID upgrade

Post by miskbrebran » Sun Sep 08, 2019 5:21 am

RAID 1 has been fixed, backed up & 2 of 4 drives loaded. Proceeding with adding 2 more 4TB HDDs, then I will need to migrate to RAID10. Any special circumstances I should know for migrating? Thx again for all your assistance!
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miskbrebran
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Re: TS-412 HDD/RAID upgrade

Post by miskbrebran » Sun Sep 08, 2019 9:31 am

So when I migrate the drives in bay 1&2 from RAID 1 to RAID10, will I lose data? I included the HDDs in bay 3&4 and it said all data on drives will be erased. Its saying that about the HDDs in bays 3&4 correct and excludes the HDDs in bay 1&2 from the original RAID1 does it?
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MrVideo
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Re: TS-412 HDD/RAID upgrade

Post by MrVideo » Sun Sep 08, 2019 9:36 am

Only new drive data is erased (if there are any existing partitions). This has been discussed many a time in this forum. The wording in the manual ** and it has never been fixed, even though QNAP knows about the wording issue.
QTS 4.1.n/4.2.n/4.3.n MANUAL
Submit QNAP Support Ticket - QNAP Tutorials, FAQs, Downloads, Wiki - Product Support Status - Moogle's QNAP FAQ help V2
When you ask a question, please include the following
(Thanks to Toxic17 for the links)
QNAP md_checker nasreport (release 20180525)
===============================
Model: TS-869L -- RAM: 3G -- FW: QTS 4.1.4 Build 20150522 (used for data storage)
WD60EFRX-68L0BN1(x1)/68MYMN1(x7) Red HDDs -- RAID6: 8x6TB -- Cold spare: 1x6TB
Entware
===============================
Model: TS-451A -- RAM: 2G -- FW: QTS 4.2.3 Build 20170213 (used as a video server)
WL3000GSA6472(x3) White label NAS HDDs -- RAID5: 3x3TB
Entware -- MyKodi 17.3 (default is Kodi 16)
===============================
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miskbrebran
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Re: TS-412 HDD/RAID upgrade

Post by miskbrebran » Sun Sep 08, 2019 9:38 am

Understood. I am migrating to RAID10 now. I just scratch it if i need to and reload the data from my back up ;). Thx!

So new question, does a bitmap provide parity or is it more of a file allocation table of data?
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Re: TS-412 HDD/RAID upgrade

Post by OneCD » Sun Sep 08, 2019 9:56 am

miskbrebran wrote:
Sun Sep 08, 2019 9:38 am
... does a bitmap provide parity or is it more of a file allocation table of data?
https://raid.wiki.kernel.org/index.php/ ... ent_bitmap

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miskbrebran
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Re: TS-412 HDD/RAID upgrade

Post by miskbrebran » Tue Sep 10, 2019 10:56 am

Greetings again! Succesfully completed migrating the RAID1 with two 3TB HDDs to a RAID10 with four 4TB HDDs. The space on each drive is 3726GB, however the total space is listed as 5563GB with 2835GB free. I was under the impression the size would be would be approximately 7.5TB by combining two of the HDDs for each volume, but this doesnt seem to be the case as seen in the screen shot. I expected a small reduction of space, but Is this reduction in storage space expected? Thanks!
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Re: TS-412 HDD/RAID upgrade

Post by P3R » Tue Sep 10, 2019 2:31 pm

miskbrebran wrote:
Tue Sep 10, 2019 10:56 am
I was under the impression the size would be would be approximately 7.5TB by combining two of the HDDs for each volume, but this doesnt seem to be the case as seen in the screen shot. I expected a small reduction of space, but Is this reduction in storage space expected?
No. It looks like you didn't follow my advice to expand the RAID 1 before migration to RAID 10 and therefore you're now only using 3 TB of each disk.

You can try to expand it now. It should work I think.
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!

miskbrebran
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Re: TS-412 HDD/RAID upgrade

Post by miskbrebran » Thu Sep 12, 2019 1:35 am

P3R wrote:
Tue Sep 10, 2019 2:31 pm
No. It looks like you didn't follow my advice to expand the RAID 1 before migration to RAID 10 and therefore you're now only using 3 TB of each disk.

You can try to expand it now. It should work I think.
Youre completely right, DOH! I forgot to do that part in your previous response. I will see what I can do, thanks!!
TS-419 QTS 4.3.3.0967 B20190629
Port Trunking BRR
RAID 10 * 4 (4TB Red WD WD40EFRX HDDs)

miskbrebran
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Re: TS-412 HDD/RAID upgrade

Post by miskbrebran » Sun Sep 15, 2019 4:54 am

P3R,

Took some time, but the 419 flawlessly executed the expansion. Just selected the RAID 10 volume and clicked expand under the action dropdown. Wanted to give everyone a big thanks for the assistance! Yall rock!

Regards.
TS-419 QTS 4.3.3.0967 B20190629
Port Trunking BRR
RAID 10 * 4 (4TB Red WD WD40EFRX HDDs)

P3R
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Re: TS-412 HDD/RAID upgrade

Post by P3R » Sun Sep 15, 2019 6:33 am

:D
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!

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