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Hi Peter,
> On Nov 8, 2023, at 20:32, Peter wrote:
>
> Anyone experienced this can advise?
You can try:
* check for current cache status
smartctl -x /dev/sda | grep "Write cache"
* turn off write cache
smartctl -s wcache-sct,off,p /dev/sda
* check again
smartctl -x /dev/sda | grep "Write
This server configured Dell R730 with HBA 330 card HDD are configured write
through mode.
From: David C.
Sent: Wednesday, November 8, 2023 10:14
To: Peter
Cc: ceph-users@ceph.io
Subject: Re: [ceph-users] HDD cache
Without (raid/jbod) controller ?
Le mer. 8
Without (raid/jbod) controller ?
Le mer. 8 nov. 2023 à 18:36, Peter a écrit :
> Hi All,
>
> I note that HDD cluster commit delay improves after i turn off HDD cache.
> However, i also note that not all HDDs are able to turn off the cache.
> special I found that two HDD with same model number,
