Henry,
sorry for delayed answer (have been on a training and was unable to read
all mail on time).
As expected you did not changed the adapter (to handle larger blocks for
tape operations). Look at max_xfer_size parameter - it has to be changed
to 0x1000000 (one zero more, in decimal from 1 MB to 16 MB). This is NOT
described in any of TSM's manuals :-(( It can be found as Important note
on p.52 in redbook "Using TSM in SAN Environment" (SG24-6132-00), Chapter
3 "Building a SAN Environment", section "3.1.1. RS/6000".
Zlatko Krastev
IT Consultant
Henrry Aranda <[EMAIL PROTECTED]>
Sent by: "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]>
29.01.2003 23:01
Please respond to "ADSM: Dist Stor Manager"
To: [EMAIL PROTECTED]
cc:
Subject: Re: LTO 3583 Drive errors with TSM 5.1.5.2 on AIX 5.1
Zlatko
No, I did not changed any settings for the FC HBA. The output of
the AIX command "lsattr -El fcsN" are the following:
- For fcs0
bus_intr_lvl 20 Bus interruptlevel False
intr_priority 3 Interrupt priority False
bus_io_addr 0x2ec00 Bus I/O address False
bus_mem_addr 0xc8020000 Bus memory address False
lg_term_dma 0x200000 N/A True
max_xfer_size 0x100000 Maximum Transfer Size True
num_cmd_elems 200 Maximum number of COMMANDS to queue to the
adapter
True
pref_alpa 0x1 Preferred AL_PA True
sw_fc_class 2 FC Class for Fabric True
init_link al INIT Link flags True
- For fcs1
...
max_xfer_size 0x100000 Maximum Transfer Size True
...
