Displaying 1 result from an estimated 1 matches for "arcsas".
2013 Jun 19
1
Weird I/O hangs (9.1R, arcsas, interrupt spikes on uhci0)
...ate simply drops to zero, and all disk access hangs; this is also very noticeable on the shell, for NFS clients etc. Everything else (networking, kernel, ?) seems to continue normally.
Environment: FreeBSD 9.1R GENERIC on amd64, using ZFS, on a ARC1320 PCIe with 24x Seagate ST33000650SS (3rd party arcsas.ko driver).
It's easy to observe these hangs under write load, e.g. with 'zpool iostat 1':
void 22.4T 42.6T 34 2.73K 1.07M 293M
void 22.4T 42.6T 20 2.74K 623K 289M
void 22.4T 42.6T 144 2.62K 4.83M 279M
void 22.4T 42.6T 13 2....