Date: Tue, 8 Feb 2022 07:54:07 -0700 From: Sean Bruno <sbruno@freebsd.org> To: freebsd-current@freebsd.org Subject: Re: USB Disk Stalls on -current Message-ID: <d17fbffb-1f67-d935-e9cf-98f577b7344b@freebsd.org> In-Reply-To: <7e8459e4-d708-7750-402c-cda2adf6199f@freebsd.org> References: <7e8459e4-d708-7750-402c-cda2adf6199f@freebsd.org>
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On 2/6/22 10:14, Sean Bruno wrote: > I'm doing something "gross" with ZFS & Plex on a little Intel NUC that I > have here at the house to provide me with a nice little NAS at home. I'm > using 2x USB2 external disks as the mirror. > > I noted that the two USB2 disks I'm using in a mirror seem to "stall" > from time to time and its not clear to me why. > > I'd like to poke further into the USB system but I'm not sure where I > should start to see if there is something amiss with the hardware (e.g. > the disks suck) or if FreeBSD is losing track of something during I/O > leading to a stall/timeout. > > I'm not seeing data loss or anything, I just note from time to time > during large file transfers that the clanking/grinding sound of the > spinning rust on my desk completely stops, the encoding of the video > files stops (so its waiting for a read to complete) and its gets much > quieter in my office. :-) > > sean > I think I'm going to grab one of these fancy 5-disk USB 3 enclosures I see on the Internet. ;-) Most of the consumer grade units seem to have one or more issues (no NCQ depth more than 1, loud/bad fans, hard to get a real JBOD mode, JBOD mode eats serial numbers making ID hard). I think I settled on the TERRAMASTER D5-300 USB3.1 I'll post back results when it arrives and I get done swearing and cursing during the replacement. sean
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