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Groups > linux.debian.user > #196731 > unrolled thread
| Started by | Richard Hector <richard@walnut.gen.nz> |
|---|---|
| First post | 2018-06-17 07:30 +0200 |
| Last post | 2018-06-17 21:30 +0200 |
| Articles | 4 — 3 participants |
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mdraid on SSD - use scterc? Richard Hector <richard@walnut.gen.nz> - 2018-06-17 07:30 +0200
Re: mdraid on SSD - use scterc? Henrique de Moraes Holschuh <hmh@debian.org> - 2018-06-17 14:40 +0200
Re: mdraid on SSD - use scterc? Richard Hector <richard@walnut.gen.nz> - 2018-06-17 14:50 +0200
Re: mdraid on SSD - use scterc? David Christensen <dpchrist@holgerdanske.com> - 2018-06-17 21:30 +0200
| From | Richard Hector <richard@walnut.gen.nz> |
|---|---|
| Date | 2018-06-17 07:30 +0200 |
| Subject | mdraid on SSD - use scterc? |
| Message-ID | <w1yqd-5Bq-1@gated-at.bofh.it> |
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Hi all, I've got a new server with 2 mdraid RAID 1 arrays - one on spinning disks, the other on SSDs. The spinners are set by default to use ERC; the SSDs are not, but appear to support it. Should I enable it on the SSDs? Or are they not prone to failure in such a way that it would be useful? Thanks, Richard
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| From | Henrique de Moraes Holschuh <hmh@debian.org> |
|---|---|
| Date | 2018-06-17 14:40 +0200 |
| Message-ID | <w1F8m-Xe-9@gated-at.bofh.it> |
| In reply to | #196731 |
On Sun, 17 Jun 2018, Richard Hector wrote: > Should I enable it on the SSDs? Or are they not prone to failure in such > a way that it would be useful? Which SSDs? Usually one lets the SSDs try as hard as they can to recover, but they're also *MUCH* faster than HDDs at it... -- Henrique Holschuh
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| From | Richard Hector <richard@walnut.gen.nz> |
|---|---|
| Date | 2018-06-17 14:50 +0200 |
| Message-ID | <w1Fi2-10H-9@gated-at.bofh.it> |
| In reply to | #196734 |
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On 18/06/18 00:35, Henrique de Moraes Holschuh wrote: > On Sun, 17 Jun 2018, Richard Hector wrote: >> Should I enable it on the SSDs? Or are they not prone to failure in such >> a way that it would be useful? > > Which SSDs? Usually one lets the SSDs try as hard as they can to > recover, but they're also *MUCH* faster than HDDs at it... INTEL SSDSC2KW256G8 (545s series) Thanks, Richard
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| From | David Christensen <dpchrist@holgerdanske.com> |
|---|---|
| Date | 2018-06-17 21:30 +0200 |
| Message-ID | <w1Lx9-4K7-29@gated-at.bofh.it> |
| In reply to | #196731 |
On 06/16/18 22:22, Richard Hector wrote: > I've got a new server with 2 mdraid RAID 1 arrays - one on spinning > disks, the other on SSDs. The spinners are set by default to use > ERC; the SSDs are not, but appear to support it. > > Should I enable it on the SSDs? Enabling SCT Error Recovery Control seems to be conventional and recommended for RAID, regardless of drive type (HDD or SSD) [1]. I have it enabled on the HDD's in my md array. > Or are they not prone to failure in > such a way that it would be useful? On 06/17/18 05:42, Richard Hector wrote: > INTEL SSDSC2KW256G8 (545s series) That looks like a high-end consumer SSD [2]. I don't see anything obvious in the specifications summary that would preclude enabling SCT Error Recovery Control. David References: [1] https://forums.freenas.org/index.php?threads/checking-for-tler-erc-etc-support-on-a-drive.27126/ [2] https://ark.intel.com/products/125020/Intel-SSD-545s-Series-256GB-2_5in-SATA-6Gbs-3D2-TLC
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