> > There is no doubt that it is both a bug and expected > behavior and is > related to deduplication being enabled.
Is it expected because it's a bug, or is it a bug that is not going to be fixed and so I should expect it? Is there a bug/defect I can keep an eye on in one of the Opensolaris bug/defect interfaces that will help me figure out what's going on with it and when a solution is expected? > > Others here have reported similar problems. The > problem seems to be > due to insufficient caching in the zfs ARC due to not > enough RAM or > L2ARC not being installed. Some people achieved > rapid success after > installing a SSD as a L2ARC device. Other people > have reported > success after moving their pool to a system with a > lot more RAM > installed. Others have relied on patience. A few > have given up and > considered their pool totally lost. > I have 8 GB of RAM on my system, which I consider to be a fairly decent amount of RAM for a storage system - maybe I'm naive about that, though. 8GB should provide a pretty decent amount of RAM available for caching, so I would think that a 10 GB volume would be able to go through RAM pretty quickly. Also, there isn't much except ZFS and COMSTAR running on this box, so there isn't really anything else using the RAM. I've already considered going and buying some SSDs for the L2ARC stuff, so maybe I'll pursue this path. I was certainly patient with it - I didn't reboot the box because I could see slow progress on the destroy. However, the other guys in my group who had stuff hanging off of this ZFS storage that had to wait 5 hours for the storage to respond to their requests were not quite so understanding or patient. This is a pretty big roadblock, IMHO, to this being a workable storage solution. I certainly do understand that I'm using the dev releases, so it is under development and I should expect bugs - this one just seems pretty significant, like I would need to schedule maintenance windows to do volume management. Thanks! -Nick -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
