Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Christoph, thx, that's reaussuring. I was not planning on using RAID though, the SSD would just be there for Dom0 and all the OS partitions of the DomUs. I may not got to the 4 years this way, but Ii hope to be able to get to at least have of that or something, cheers, B. On 03/08/12 12:10, Christoph Roethlisberger wrote: > We are using consumer grade SSD drives in a few of our servers for 4+ > years now. (started with MTRON devices, switched to Intel later on and > lately also some Samsung drives) > Though we just started using SSD drives as DRBD backend storage > (hardware RAID6 - thus no TRIM anyways) we use similar configurations > in storage arrays for high IO performance virtual machines. (ESX mostly) > So far we had zero problems with it and no measurable performance > degradation and only one drive from the 100+ we have, failed so far. > Though this happened already after one of two weeks in operation and > was an electronic problem and not due to NAND wear out. > > As long as the drives have some internal GarbageCollection (as most do > nowadays) and you make sure that they do never fill up completeley > (normally we format such arrays to a max of 90% of available space) > the absence of TRIM can be neglected in my opinion. > > As far as TRIM support in DRBD goes - I don't know. > LVM may support it already in RAID0/1 setups, but MDRaid nor any > hardware RAID does it, (and hardware raid support may never ever > come/work beside raid0/1 setups) so this limits the use of TRIM > support in DRBD quite much. > > > Christoph > > > >> Hi all, >> >> I was wondering if anyone is successfully SSD drives as their backend >> storage devices. If so, I'm wondering if these drives do no degrade >> quite fast seen there is no TRIM support in DRBD. >> >> I'm also wondering if can motivate people to help sponsor this >> feature. If the group is large enough, I suppose we can get this done >> for not too much money. > > _______________________________________________ > drbd-user mailing list > drbd-user at lists.linbit.com > http://lists.linbit.com/mailman/listinfo/drbd-user