From: Oleg Cherkasov <o1e9@member.fsf.org>
To: linux-lvm@redhat.com
Subject: Re: [linux-lvm] cache on SSD makes system unresponsive
Date: Fri, 20 Oct 2017 12:21:44 +0200 [thread overview]
Message-ID: <62efc412-fd2b-5412-9de5-015dd8136bf2@member.fsf.org> (raw)
In-Reply-To: <e1f18d05e7670e9d63075854195a2c70@xenhideout.nl>
On 19. okt. 2017 20:13, Xen wrote:
>
> The main cause was a way too slow SSD but at the same time... that sorta
> thing still shouldn't happen, locking up the entire system.
>
> I haven't had a chance to try again with a faster SSD.
I have double checked with MegaRAID/CLI and all disks on that rig
(including SSD ones of course) are SAS 6Gb/s both devices and links. My
first thought about those SSDs was that those are slower than RAID5
however it seems not the case.
Could it be TRIMing issue because those are from 2012?
next prev parent reply other threads:[~2017-10-20 10:21 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-19 17:54 [linux-lvm] cache on SSD makes system unresponsive Oleg Cherkasov
2017-10-19 18:13 ` Xen
2017-10-20 10:21 ` Oleg Cherkasov [this message]
2017-10-20 10:38 ` Xen
2017-10-20 11:41 ` Oleg Cherkasov
2017-10-19 18:49 ` Mike Snitzer
2017-10-20 11:07 ` Joe Thornber
2017-10-19 19:09 ` John Stoffel
2017-10-19 19:46 ` Xen
2017-10-19 21:14 ` John Stoffel
2017-10-20 6:42 ` Xen
2017-10-19 21:59 ` Oleg Cherkasov
2017-10-20 19:35 ` John Stoffel
2017-10-21 3:05 ` Mike Snitzer
2017-10-21 14:33 ` Oleg Cherkasov
2017-10-23 10:58 ` Zdenek Kabelac
2017-10-21 2:55 ` Mike Snitzer
2017-10-21 14:10 ` Oleg Cherkasov
2017-10-23 20:45 ` John Stoffel
2017-10-20 16:20 ` lejeczek
2017-10-20 16:48 ` Xen
2017-10-20 17:02 ` Bernd Eckenfels
2017-10-24 14:51 ` lejeczek
[not found] <640472762.2746512.1508882485777.ref@mail.yahoo.com>
2017-10-24 22:01 ` matthew patton
2017-10-24 23:10 ` Chris Friesen
[not found] <1928541660.2031191.1508802005006.ref@mail.yahoo.com>
2017-10-23 23:40 ` matthew patton
2017-10-24 15:36 ` Xen
[not found] <1714773615.1945146.1508792555922.ref@mail.yahoo.com>
2017-10-23 21:02 ` matthew patton
2017-10-23 21:54 ` Xen
2017-10-24 2:51 ` John Stoffel
[not found] <1540708205.1077645.1508602122091.ref@mail.yahoo.com>
2017-10-21 16:08 ` matthew patton
[not found] <1244564108.1073508.1508601932111.ref@mail.yahoo.com>
2017-10-21 16:05 ` matthew patton
2017-10-24 18:09 ` Oleg Cherkasov
[not found] <541215543.377417.1508458336923.ref@mail.yahoo.com>
2017-10-20 0:12 ` matthew patton
2017-10-20 6:46 ` Xen
2017-10-20 9:59 ` Oleg Cherkasov
-- strict thread matches above, loose matches on Subject: below --
2017-10-19 10:05 Oleg Cherkasov
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