aic79xx + tape 2.6.13.5 -> 2.6.15.4 problem



Sorry to bother you with this. I have a server
system equipped with an Adaptec U320 board,
attached a HP Ultrium 2 drive.
Since I upgraded from kernel version 2.6.13.5
to 2.6.15.4, tape write speeds dropped from
22 MB/s to 4.5 MB/s. Looks like asynchonous
write mode is now negotiated.
Any help is appreciated - please, cc to my
address above as I am not a regular reader.
Thanks,

Frithjof
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/



Relevant Pages

  • Re: Neu Fusion NPS-301U print server
    ... > the manual also shows it running at 10 MB/s. ... working via a Belkin wireless USB print server and Gimp-print. ...
    (comp.sys.acorn.hardware)
  • Re: Verizon FIOS Mac speed question.
    ... > I just got Verizon's FIOS fiber optic internet service. ... It came with a DL speed of 5 Mb/s and I paid an additional $10 ... > well since the router is capable of 22 Mb/s. ... > because my Roadrunner server met my needs for free. ...
    (comp.sys.mac.comm)
  • Re: 4-way Opteron vs. Xeon-IBM X3 architecture
    ... including THG (not my choice either but the one that ... >medium/large-ish 4P server that costs tens of thousands of dollars. ... > The 400 Mb/s bin was supposed to have been reserved for DDR2, ... Not expecting some evolution and progress in functional specs is a bit ...
    (comp.sys.ibm.pc.hardware.chips)
  • Re: 4-way Opteron vs. Xeon-IBM X3 architecture
    ... including THG (not my choice either but the one that ... have been able to run 4 ranks at DDR400 on each ... medium/large-ish 4P server that costs tens of thousands of dollars. ... The 400 Mb/s bin was supposed to have been reserved for DDR2, ...
    (comp.sys.ibm.pc.hardware.chips)
  • Re: 4-way Opteron vs. Xeon-IBM X3 architecture
    ... appear not to have read - I'm not going to give you lessons on reading them but the rank counts and speed considerations are spelled out... ... getting it demonstrated to work by THG and getting it shipped in a medium/large-ish 4P server that costs tens of thousands of dollars. ... I did, however, have issues when I tested a mix of Crucial and Corsair DIMMs. ... IMO, seeing DDR@ 400 Mb/s in a server is itself a bit of a surprise, ...
    (comp.sys.ibm.pc.hardware.chips)