Also another thing I think worth asking is if these ssd‘s are standard Sata drives or m.2 drives
Sent from my iPhone > On 22 Jul 2018, at 08:02, Jonathan Engwall <engwalljonathanther...@gmail.com> > wrote: > > Does 345 power_on_hours seem like "old age" > Not happy. Thanks for the CEPH tip. > >> On Sat, Jul 21, 2018, 11:30 PM Jonathan Engwall >> <engwalljonathanther...@gmail.com> wrote: >> I built up a couple r610 dells with the idea that they would boot from ssd >> through a usb external drive. The cheap external drives might be the real >> culprits. I have to think about that. >> The latest drive to fail was a Kingston and I think it was new. >> There is a write limit on some ssds? >> Lately I have been building trying to crosscompile the cray xmp simulator. >> It has thousands of targets. But earlier this week afterI installed >> openvswitch was when the trouble began. >> Jonathan Engwall >> >>> On Sat, Jul 21, 2018, 10:44 PM John Hearns via Beowulf >>> <beowulf@beowulf.org> wrote: >>> I forgot the main purpose of the Internet. My bad. >>> >You don't say for which purpose the SSDs are being used. >>> Storing cat pics? >>> >>>> On 22 July 2018 at 07:41, John Hearns <hear...@googlemail.com> wrote: >>>> You don't say for which purpose the SSDs are being used. >>>> In your laptop? >>>> As system disks in HPC compute nodes? >>>> Journalling drives in a parallel filesystem? >>>> Data storage drives in a parallel filesystem? >>>> >>>> Over on the CEPH mailing list there are regular topics on choice of SSDs. >>>> I would advise going over there and asking the same question. >>>> >>>> Also you don't say how they are failing. >>>> Are these consumer grade drives or data centre grade drives? >>>> Consumer drives have much, much lower 'drive writes per day' >>>> >>>> Two jobs ago I would have said the go-to data centre drives were Intel. >>>> >>>> Also one comment specific to HPC. I found that SSD drives dont 'get sick' >>>> like spinning drives, >>>> ie you dont see syslog messages about blocks failing to be read/written. >>>> They just fail. >>>> Also two jobs ago I though that SMART checks were not picking up failing >>>> SSDs. >>>> I believe that you can monitor them if you choose the correct counters. >>>> Anyone? >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>>> On 22 July 2018 at 07:32, Jonathan Aquilina <jaquil...@eagleeyet.net> >>>>> wrote: >>>>> What Ones are you currently getting? >>>>> >>>>> Sent from my iPhone >>>>> >>>>> > On 22 Jul 2018, at 05:42, Jonathan Engwall >>>>> > <engwalljonathanther...@gmail.com> wrote: >>>>> > >>>>> > I am not happy with the SSDs I am using. I am buying another sad every >>>>> > couple weeks. >>>>> > Fast sure, but my productivity right now is zero. >>>>> > Are there any recommendations on reliable ssd brands? >>>>> > Jonathan Engwall >>>>> > _______________________________________________ >>>>> > Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing >>>>> > To change your subscription (digest mode or unsubscribe) visit >>>>> > http://www.beowulf.org/mailman/listinfo/beowulf >>>>> >>>>> _______________________________________________ >>>>> Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing >>>>> To change your subscription (digest mode or unsubscribe) visit >>>>> http://www.beowulf.org/mailman/listinfo/beowulf >>>> >>> >>> _______________________________________________ >>> Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing >>> To change your subscription (digest mode or unsubscribe) visit >>> http://www.beowulf.org/mailman/listinfo/beowulf > _______________________________________________ > Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing > To change your subscription (digest mode or unsubscribe) visit > http://www.beowulf.org/mailman/listinfo/beowulf
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