26 Jan
2018
26 Jan
'18
6:26 p.m.
If a disk fails (aka node fails) assuming no RAID, once the disk gets replaced, the node will rebuild? Is that what will happen or am I over simplifying? On 2018-01-26 09:02, Yaniv Kaul wrote: > On Fri, Jan 26, 2018 at 4:58 PM, <ovirt@fateknollogee.com> wrote: > >> Yaniv, >> >> You bring up a valid point. >> >> I asked about RAID since I was concerned about drive failures & >> performance. >> Since Gluster will handle data replication, using HBA seems like a >> better choice? > > Without local node replication (RAID), a failed disk == a failed node. > This may or may not be acceptable. > Y. > >> From Yaniv: > I think there are two interesting questions here: > 1. Why would you want RAID? Your data is replicated already on other > Gluster nodes. RAID writes will wear out the SSDs earlier and RAID > 'wastes' > additional space. The reason may be because you don't want the node to > go > down in case of a single disk malfunction. Fair - but is that the > case? > 2. I think HW RAID should be higher performing, but that's about it. > Y. > > On 2018-01-10 12:05, Roberto Nunin wrote: > >> Il 10 Gen 2018 20:40, <ovirt@fateknollogee.com> ha scritto: >> >>> oVirt + Gluster (hyperconverged) RAID question: >>> I have 3 nodes of SuperMicro hardware, each node has 1x SATADOM >>> (boot drive for o/s install) and 6x 1TB SSD (to be used for >>> Gluster). >>> For the SSDs, is hardware or software RAID preferred or do I use >>> an >>> HBA? >>> The RedHat docs seem to suggest hardware RAID, others on the forum >>> say HBA or software RAID. >>> >>> What are other folks using? >> >> I'm using hardware raid. >> >>> _______________________________________________ >>> Users mailing list >>> Users@ovirt.org >>> http://lists.ovirt.org/mailman/listinfo/users [1] [1] >> >> Links: >> ------ >> [1] http://lists.ovirt.org/mailman/listinfo/users [1] > > > > Links: > ------ > [1] http://lists.ovirt.org/mailman/listinfo/users