This is an interesting one - Also applies to FC6228 http://www-1.ibm.com/servers/eserver/pseries/library/hardware_docs/sa23/2325 50.pdf pg 24 Will try on new tsm server
Thanks Zlatko Jose Rivera Ris Infrastructure 908-298-3568 1-800-PAGE-MCI #1376812 -----Original Message----- From: Zlatko Krastev/ACIT [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 06, 2003 1:59 AM To: [EMAIL PROTECTED] Subject: Re: LTO 3583 Drive errors with TSM 5.1.5.2 on AIX 5.1 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 ... ********************************************************************* This message and any attachments is solely for the intended recipient. If you are not the intended recipient, disclosure, copying, use or distribution of the information included in this message is prohibited -- Please immediately and permanently delete.
