Re: RX2800 sporadic disk I/O slowdowns

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Sujet : Re: RX2800 sporadic disk I/O slowdowns
De : ldo (at) *nospam* nz.invalid (Lawrence D'Oliveiro)
Groupes : comp.os.vms
Date : 20. Oct 2024, 02:04:06
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vf1ku6$3vhv$1@dont-email.me>
References : 1 2
User-Agent : Pan/0.160 (Toresk; )
On Fri, 18 Oct 2024 17:09:44 -0500, Craig A. Berry wrote:

That is exactly what happens when the cache battery on a RAID controller
dies.

Here’s another question: why does a disk controller need a battery-backed-
up cache? Or indeed any cache at all?

Is this because it tells lies to the OS, saying that the data has been
safely written to disk when in fact it hasn’t?

Date Sujet#  Auteur
18 Oct 24 * RX2800 sporadic disk I/O slowdowns44Richard Jordan
18 Oct 24 +* Re: RX2800 sporadic disk I/O slowdowns36Craig A. Berry
19 Oct 24 i+* Re: RX2800 sporadic disk I/O slowdowns6Lawrence D'Oliveiro
19 Oct 24 ii`* Re: RX2800 sporadic disk I/O slowdowns5Arne Vajhøj
19 Oct 24 ii `* Re: RX2800 sporadic disk I/O slowdowns4Lawrence D'Oliveiro
19 Oct 24 ii  `* Re: RX2800 sporadic disk I/O slowdowns3Arne Vajhøj
19 Oct 24 ii   `* Re: RX2800 sporadic disk I/O slowdowns2Lawrence D'Oliveiro
19 Oct 24 ii    `- Re: RX2800 sporadic disk I/O slowdowns1Arne Vajhøj
20 Oct 24 i+* Re: RX2800 sporadic disk I/O slowdowns27Lawrence D'Oliveiro
20 Oct 24 ii`* Re: RX2800 sporadic disk I/O slowdowns26Arne Vajhøj
20 Oct 24 ii `* Re: RX2800 sporadic disk I/O slowdowns25Lawrence D'Oliveiro
20 Oct 24 ii  `* Re: RX2800 sporadic disk I/O slowdowns24Arne Vajhøj
20 Oct 24 ii   `* Re: RX2800 sporadic disk I/O slowdowns23Lawrence D'Oliveiro
20 Oct 24 ii    `* Re: RX2800 sporadic disk I/O slowdowns22Arne Vajhøj
20 Oct 24 ii     `* Re: RX2800 sporadic disk I/O slowdowns21Lawrence D'Oliveiro
20 Oct 24 ii      +* Re: RX2800 sporadic disk I/O slowdowns16Arne Vajhøj
20 Oct 24 ii      i`* Re: RX2800 sporadic disk I/O slowdowns15Lawrence D'Oliveiro
20 Oct 24 ii      i `* Re: RX2800 sporadic disk I/O slowdowns14Arne Vajhøj
20 Oct 24 ii      i  `* Re: RX2800 sporadic disk I/O slowdowns13Lawrence D'Oliveiro
21 Oct 24 ii      i   `* Re: RX2800 sporadic disk I/O slowdowns12Arne Vajhøj
21 Oct 24 ii      i    `* Re: RX2800 sporadic disk I/O slowdowns11Lawrence D'Oliveiro
21 Oct 24 ii      i     `* Re: RX2800 sporadic disk I/O slowdowns10Arne Vajhøj
21 Oct 24 ii      i      `* Re: RX2800 sporadic disk I/O slowdowns9Lawrence D'Oliveiro
21 Oct 24 ii      i       `* Re: RX2800 sporadic disk I/O slowdowns8Arne Vajhøj
21 Oct 24 ii      i        `* Re: RX2800 sporadic disk I/O slowdowns7Lawrence D'Oliveiro
21 Oct 24 ii      i         `* Re: RX2800 sporadic disk I/O slowdowns6Arne Vajhøj
21 Oct 24 ii      i          `* Re: RX2800 sporadic disk I/O slowdowns5Lawrence D'Oliveiro
21 Oct 24 ii      i           `* Re: RX2800 sporadic disk I/O slowdowns4Arne Vajhøj
21 Oct 24 ii      i            `* Re: RX2800 sporadic disk I/O slowdowns3Lawrence D'Oliveiro
21 Oct 24 ii      i             `* Re: RX2800 sporadic disk I/O slowdowns2Simon Clubley
21 Oct 24 ii      i              `- Re: RX2800 sporadic disk I/O slowdowns1Dan Cross
20 Oct 24 ii      +* Re: RX2800 sporadic disk I/O slowdowns2Craig A. Berry
20 Oct 24 ii      i`- Re: RX2800 sporadic disk I/O slowdowns1Lawrence D'Oliveiro
21 Oct 24 ii      `* Re: RX2800 sporadic disk I/O slowdowns2Simon Clubley
21 Oct 24 ii       `- Re: RX2800 sporadic disk I/O slowdowns1Arne Vajhøj
21 Oct 24 i`* Re: RX2800 sporadic disk I/O slowdowns2Richard Jordan
21 Oct 24 i `- Re: RX2800 sporadic disk I/O slowdowns1Craig A. Berry
19 Oct 24 +- Re: RX2800 sporadic disk I/O slowdowns1Volker Halle
5 Nov 24 +* Re: RX2800 sporadic disk I/O slowdowns3Richard Jordan
5 Nov 24 i`* Re: RX2800 sporadic disk I/O slowdowns2abrsvc
5 Nov 24 i `- Re: RX2800 sporadic disk I/O slowdowns1Richard Jordan
5 Nov 24 `* Re: RX2800 sporadic disk I/O slowdowns3Volker Halle
5 Nov 24  `* Re: RX2800 sporadic disk I/O slowdowns2Richard Jordan
7 Nov 24   `- Re: RX2800 sporadic disk I/O slowdowns1Volker Halle

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