There are tuning parameters for how fast ZFS will allow itself to rebuild, it may not be the hardware. http://broken.net/uncategorized/zfs-performance-tuning-for-scrubs-and-resilvers/ > -----Original Message----- > From: tclug-list-bounces at mn-linux.org [mailto:tclug-list-bounces at mn- > linux.org] On Behalf Of Clug > Sent: Monday, May 11, 2015 2:24 PM > To: TCLUG > Subject: Re: [tclug-list] Time (was: that whoel ZFS thing) > > On Mon, 11 May 2015, Linda Kateley wrote: > > > I forget what the raid set was? 7+1? > > It's two 3+1. > > > No activity on it while it was rebuilding? > > Minimal activity. I mean it was still online and shared via NFS, but nothing was > accessing it. About half-way through I got bored and did do some read- > access, and I noticed that didn't change the pace. There was still minimal stuff > and it kept going at about 80M/sec. > > Funny thing is after the rebuild was complete I decided to do a just-in-case > scrub. > > No activity, and that went from 70K/sec to 30K/sec. It's at 25% and says it'll be > another 83 hours... this is NOT a fast array. > > I sometimes tell myself that if I throw ECC RAM in there it'll be faster, but I > don't think that's the bottleneck. I think these NAS drives are built for > reliability rather than speed. Sure, I've had to RMA two of them so far, but > hey. > > > -- > _______________________________________________ > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota tclug-list at mn-linux.org > http://mailman.mn-linux.org/mailman/listinfo/tclug-list This communication, including any attachments, may contain information that is proprietary, privileged, confidential or legally exempt from disclosure. If you are not a named addressee, you are hereby notified that you are not authorized to read, print, retain a copy of or disseminate any portion of this communication without the consent of the sender and that doing so may be unlawful. If you have received this communication in error, please immediately notify the sender via return e-mail and delete it from your system. In order to safeguard its employee data as well as sensitive patient, customer, business, legal and other information, the company uses all lawful means, under all applicable law, to access, monitor, preserve, collect and review all communications between employees and all other users only when, and to the extent necessary, to fulfill investigatory and other important business and legal responsibilities. By responding to this communication, or initiating additional communication with the company, you consent to such lawful monitoring, to the extent such consent is required and valid in your local area.