Re: replace dead SSD journal

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi,

small update:

in 3 months - we lost 5 out of 6 Samsung 128Gb 850 PROs (just few days in between of each SSD death) - cant believe it - NOT due to wearing out... I really hope we got efective series from suplier...

Regards

On 18 April 2015 at 14:24, Andrija Panic <andrija.panic@xxxxxxxxx> wrote:
yes I know, but to late now, I'm afraid :)

On 18 April 2015 at 14:18, Josef Johansson <josef86@xxxxxxxxx> wrote:

Have you looked into the samsung 845 dc? They are not that expensive last time I checked.

/Josef

On 18 Apr 2015 13:15, "Andrija Panic" <andrija.panic@xxxxxxxxx> wrote:
might be true, yes - we had Intel 128GB (intel S3500 or S3700) - but these have horrible random/sequetial speeds - Samsun 850 PROs are 3 times at least faster on sequential, and more than 3 times faser on random/IOPS measures.
And ofcourse modern enterprise drives = $$$$...

On 18 April 2015 at 12:42, Mark Kirkwood <mark.kirkwood@xxxxxxxxxxxxxxx> wrote:
Yes, it sure is - my experience with 'consumer' SSD is that they die with obscure firmware bugs (wrong capacity, zero capacity, not detected in bios anymore) rather than flash wearout. It seems that the 'enterprise' tagged drives are less inclined to suffer this fate.

Regards

Mark

On 18/04/15 22:23, Andrija Panic wrote:
these 2 drives, are on the regular SATA (on board)controler, and beside
this, there is 12 x 4TB on the fron of the servers - normal backplane on
the front.

Anyway, we are going to check those dead SSDs on a pc/laptop or so,just
to confirm they are really dead - but this is the way they die, not wear
out, but simply show different space instead of real one - thse were 3
months old only when they died...

On 18 April 2015 at 11:55, Josef Johansson <josef86@xxxxxxxxx
<mailto:josef86@xxxxxxxxx>> wrote:

    If the same chassi/chip/backplane is behind both drives and maybe
    other drives in the chassi have troubles,it may be a defect there as
    well.

    On 18 Apr 2015 09:42, "Steffen W Sørensen" <stefws@xxxxxx
    <mailto:stefws@xxxxxx>> wrote:


         > On 17/04/2015, at 21.07, Andrija Panic
        <andrija.panic@xxxxxxxxx <mailto:andrija.panic@xxxxxxxxx>> wrote:
         >
         > nah....Samsun 850 PRO 128GB - dead after 3months - 2 of these
        died... wearing level is 96%, so only 4% wasted... (yes I know
        these are not enterprise,etc… )
        Damn… but maybe your surname says it all - Don’t Panic :) But
        making sure same type of SSD devices ain’t of near same age and
        doing preventive replacement rotation might be good practice I
        guess.

        /Steffen

        _______________________________________________
        ceph-users mailing list
        ceph-users@xxxxxxxxxxxxxx <mailto:ceph-users@xxxxxxxxxxxxxx>
        http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com




--

Andrija Panić


_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com





--

Andrija Panić



--

Andrija Panić



--

Andrija Panić
_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com

[Index of Archives]     [Information on CEPH]     [Linux Filesystem Development]     [Ceph Development]     [Ceph Large]     [Linux USB Development]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [xfs]


  Powered by Linux