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found 3 articles for 0.176 sec
Hi, I just upgraded a 5x500 raidz (no NCQ) array to an 8x2tb raidz2 (NCQ) array. In the process I was expecting my new setup to absolutely tear through data due to having faster and additional drives. While the new setup is considerably faster than the old, some of the throughput rates weren't as high as I was expecting. I was hoping I could get some help to understand how ZFS is     

Group: muc.lists.freebsd.fs · Group Profile · Search for Da1s in muc.lists.freebsd.fs
Author: Bradley W. Dutton
Date: Jun 7, 2010 15:42

Is it expected behaviour that ahci performs a time-out during boot, even though camcontrol indicates success? This is on 8.1-PRERELEASE csup'ed today. I've enclosed dmesg, camcontrol and pciconf information. The timeout is approximately 12 to 14 seconds for each connected disk-drive. If I run with only usb devices, there are no timeouts. The following dmesg is when I connect two HDD's
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Is it expected behaviour that ahci performs a time-out during boot, even though camcontrol indicates success? This is on 8.1-PRERELEASE csup'ed today. I've enclosed dmesg, camcontrol and pciconf information. The timeout is approximately 12 to 14 seconds for each connected disk-drive. If I run with only usb devices, there are no timeouts. The following dmesg is when I connect two HDD's     

Group: muc.lists.freebsd.stable · Group Profile · Search for Da1s in muc.lists.freebsd.stable
Author: Phil
Date: May 31, 2010 22:15

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Group: mpc.lists.freebsd.stable · Group Profile · Search for Da1s in mpc.lists.freebsd.stable
Author: Phil
Date: May 31, 2010 22:15

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