Re: [MooseFS-Users] ___SPAM___ [About] MFS disk use discussion (Raid or no Raid)

[Yves R. - eurower.f. <yve...@eu...>]

Hi,

no, dont convert them to RAID0 !

If a disk of RAID0 failed, all content of the volume are lost
(https://en.wikipedia.org/wiki/RAID)

Each disk must be independant (format each disk /dev/sdx for use as one).

Next, add each disk on MFS.

MFS will report (mfscgi) if a disk has a problem (latency etc ...), see
log files also and smart.

With this configuration, if one disk fail, all others are ok with MFS.

Best regards,

Yves


Alexander Akhobadze a écrit :
>
>
> Hi
> You are right. Convert them into RAID0.
>
> Ахобадзе Александр
> akh...@ri... <mailto:akh...@ri...>
>
> ======================================================
> Вы писали 20 декабря 2015 г., 9:26:56:
> ======================================================
>
> Hi All
>
> I have a discussion.
>
> Now i used two mfs chuckserver to save Jboss log data . Server A and
> Server B. and mfs had good performance.
>
> Server A : 3 hard disk (each 2T Raid 5)
> Server B : 3 hard disk (each 500G Raid 5)
>
> i have a thought. why not remove server's raid and directly use each
> disk for mfs chuck.
> the reason is:
> 1, Raid is mostly used for keep data safe. But mfs already did it if
> you choose a good copy number.
> 2, Raid let the disk write slower than no raid for each disk.
> 3. Remove raid can got more disk space for mfs chuck.
>
> am i right? hope got response.
> ------------------------------------------------------------------------
>
> ------------------------------------------------------------------------------
>   
> ------------------------------------------------------------------------
>
> _________________________________________
> moosefs-users mailing list
> moo...@li...
> https://lists.sourceforge.net/lists/listinfo/moosefs-users
>