On 06/07/2013 11:21 PM, Lars Ellenberg wrote:
19:56:13 kernel: block drbd0: ASSERT FAILED new < now; (131072 < 1048576)
19:56:13 kernel: block drbd0: max BIO size = 131072
We'll fix that.
Great :-)
I wonder why the peer has smaller max bio size in the first place, though.
Because the harddisk in the peer is connected to a 3ware/LSI 9750 controller
which supports a max_hw_sectors_kb size of 128, only - while the harddisk
in the primary is connected to an on-board controller supporting much larger
values.
(BTW: The 3ware/LSI raid controllers perform incredibly bad when used with
fast SSDs due to this ridiculously low max_hw_sectors_kb - it seems they try
to promote their overpriced "SSD support" add-on-dongle that way. I can only
say that I'll never buy a 3ware/LSI controller again, because of that.)
Regards,
Lutz Vieweg
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