ADSM-L

Re: Performance problems

1997-09-16 16:02:38
Subject: Re: Performance problems
From: "Pittson, Timothy ,HiServ/NA" <tpittson AT HIMAIL.HCC DOT COM>
Date: Tue, 16 Sep 1997 16:02:38 -0400
Bryan,
        We upgraded to AIX 4.2.1 this Sunday and installed some 100 Mb/sec
Ethernet cards on Monday - performance has been outstanding, especially
with the 100 Mb cards... there have been some posts to this listserver
regarding some fixes that are required for AIX 4.2 and/or AIX 4.2.1 ...
here's the note I used as a starting point to determine what PTFs to
pull down from the internet.  We're using Atape.driver 3.2.0.8 and
atldd.driver 3.1.0.7, and ADSM Version 2.1.5.13 with some patches for an
export problem we were experiencing.  (Sorry for the long attachment - I
know this has been a topic of conversation lately but thought it was
appropriate in the instance).

Regards...
Tim Pittson
tpittson AT himail.hcc DOT com

Read *only* if you're running your ADSM Server on AIX 4.2.1,
------------------------------------------------------------
to bring up your ADSM Server to the latest service level the following
to bring up your ADSM Server to the latest service level the following
fixes can be applied to the AIX base OS.....

    22528 Sep 05 16:58 bos.acct.usr.4.2.1.1
    67584 Sep 05 16:58 bos.adt.include.usr.4.2.1.4
    23552 Sep 05 16:58 bos.adt.lib.usr.4.2.1.1
  2548736 Sep 05 16:58 bos.adt.prof.usr.4.2.1.4
     6144 Sep 05 16:58 bos.adt.syscalls.usr.4.2.1.1
   151552 Sep 05 16:58 bos.atm.atmle.usr.4.2.1.1
   132096 Sep 05 16:58 bos.diag.com.usr.4.2.1.2
   225280 Sep 05 16:58 bos.diag.rte.usr.4.2.1.2
    35840 Sep 05 16:58 bos.diag.util.usr.4.2.1.1
   304128 Sep 05 16:58 bos.loc.com.JP.usr.4.2.1.1
  1885184 Sep 05 16:58 bos.mp.usr.4.2.1.5
   701440 Sep 05 16:58 bos.net.nfs.client.usr.4.2.1.5
    31744 Sep 05 16:59 bos.net.nis.client.usr.4.2.1.2
   144384 Sep 05 16:59 bos.net.ppp.usr.4.2.1.5
    43008 Sep 05 16:59 bos.net.tcp.adt.usr.4.2.1.1
  1226752 Sep 05 16:59 bos.net.tcp.client.usr.4.2.1.7
   137216 Sep 05 16:59 bos.net.tcp.server.usr.4.2.1.3
    23552 Sep 05 16:59 bos.rte.SRC.usr.4.2.1.1
    25600 Sep 05 16:59 bos.rte.aio.usr.4.2.1.2
    23552 Sep 05 16:59 bos.rte.archive.usr.4.2.1.1
   256000 Sep 05 16:59 bos.rte.bind_cmds.usr.4.2.1.2
    37888 Sep 05 16:59 bos.rte.boot.usr.4.2.1.2
    45056 Sep 05 16:58 bos.rte.commands.usr.4.2.1.1
    23552 Sep 05 16:58 bos.rte.console.usr.4.2.1.2
   300032 Sep 05 16:58 bos.rte.control.usr.4.2.1.4
   418816 Sep 05 16:58 bos.rte.install.usr.4.2.1.2
  2896896 Sep 05 16:58 bos.rte.libc.usr.4.2.1.4
    22528 Sep 05 16:58 bos.rte.libnetsvc.usr.4.2.1.1
    88064 Sep 05 16:58 bos.rte.libpthreads.usr.4.2.1.1
   539648 Sep 05 16:58 bos.rte.libs.usr.4.2.1.3
    55296 Sep 05 16:58 bos.rte.printers.usr.4.2.1.2
   142336 Sep 05 16:58 bos.rte.security.usr.4.2.1.3
   452608 Sep 05 16:58 bos.rte.shell.usr.4.2.1.4
   144384 Sep 05 16:58 bos.rte.streams.usr.4.2.1.1
   292864 Sep 05 16:58 bos.rte.tty.usr.4.2.1.4
   166912 Sep 05 16:58 bos.sysmgt.sysbr.usr.4.2.1.2
  1739776 Sep 05 16:58 bos.up.usr.4.2.1.5

    38912 Sep 05 16:57 devices.base.diag.usr.4.2.1.1
   376832 Sep 05 16:57 devices.buc.00004002.X11.usr.4.2.1.3
   114688 Sep 05 16:57 devices.buc.00004002.rte.usr.4.2.1.2
   115712 Sep 05 16:57 devices.chrp.base.rte.usr.4.2.1.2
    80896 Sep 05 16:57 devices.common.IBM.atm.rte.usr.4.2.1.3
    38912 Sep 05 16:57 devices.common.IBM.ethernet.rte.usr.4.2.1.2
    26624 Sep 05 16:57 devices.common.IBM.fcs.rte.usr.4.2.1.1
    19456 Sep 05 16:57 devices.common.IBM.fddi.rte.usr.4.2.1.1
     9216 Sep 05 16:57 devices.graphics.com.usr.4.2.1.1
    86016 Sep 05 16:57 devices.mca.0072.rte.usr.4.2.1.2
    66560 Sep 05 16:57 devices.mca.61fd.rte.usr.4.2.1.2
   111616 Sep 05 16:57 devices.mca.8f62.rte.usr.4.2.1.9
    20480 Sep 05 16:57 devices.mca.8fc8.com.usr.4.2.1.1
    66560 Sep 05 16:57 devices.mca.edd0.com.usr.4.2.1.2
    98304 Sep 05 16:57 devices.mca.ffe1.rte.usr.4.2.1.2
    13312 Sep 05 16:57 devices.pci.14104e00.rte.usr.4.2.1.1
    30720 Sep 05 16:57 devices.pci.14104f00.rte.usr.4.2.1.1
    13312 Sep 05 16:57 devices.pci.14105000.rte.usr.4.2.1.1
   168960 Sep 05 16:57 devices.pci.14107c00.com.usr.4.2.1.2
   169984 Sep 05 16:57 devices.pci.14107c00.com.usr.4.2.1.3
    22528 Sep 05 16:57 devices.pci.14107c00.rte.usr.4.2.1.1
    74752 Sep 05 16:57 devices.pci.331121b9.rte.usr.4.2.1.2
   155648 Sep 05 16:57 devices.pci.3353c088.X11.com.usr.4.2.1.1
    80896 Sep 05 16:57 devices.scsi.disk.diag.com.usr.4.2.1.1
    95232 Sep 05 16:57 devices.scsi.disk.diag.rte.usr.4.2.1.2
    93184 Sep 05 16:57 devices.scsi.scarray.diag.usr.4.2.1.1
    65536 Sep 05 16:57 devices.scsi.tape.diag.usr.4.2.1.1
    26624 Sep 05 16:57 devices.scsi.tape.rte.usr.4.2.1.1
    57344 Sep 05 16:57 devices.serial.gio.diag.usr.4.2.1.1
    31744 Sep 05 16:57 devices.sio.ktma.rte.usr.4.2.1.1
    90112 Sep 05 16:57 devices.tty.rte.usr.4.2.1.3

    ************ Problems fixed in details ******************

IX63915  SOCKET CODE MAY CRASH SYSTEM
IX66059  DCD NOT SENSED WHEN LDTERM PUSHED
IX66404  FTOK() GENERATES DUPLICATE KEYS IN AFS/DFS
IX66430  chcons always displays disabled message
IX66541  %W,%U ERRORS WITH STRPTIME
IX66617  rembak doesn't retry if connect failed with errno=ETIMEDOUT
IX66640  SOME PROTOTYPES FOR C++ ARE MISSING
IX67137  ADD OPTION TO PREVENT REXEC FROM READING STDIN
IX67350  REPLACE FAILS AFTER NULL INSERT IN VI EDIT MODE
IX67355  INCORRECT SUBSTRING PARAMETER EXPANSION
IX67491  Implement fine grain locking in LVM path
IX67500  big client files limited to 64GB
IX67546  DHCPSD: Need to allow for leased bootp.
IX67570  ALIGNMENT INCONSISTENCY IN SELECT STATEMENT
IX67588  vm_makep can assert for large client file
IX67598  SIGIO IS INEFFECIENT
IX67642  Paths not discovered for large MTUs
IX67740  Restore netstat -r fields to original order
IX67742  SETPWFILE_R() NOT EXPORTED FROM LIBC_R
IX67785  System Hang on MP systems
IX67787  performance problem on 10/100 Mbs ethernet in SMPs
IX67788  entstat -r can hang 10/100 Mbs ethernet
IX67789  NFS client creates too many threads under stress
IX67790  Servers unable to register to portmap
IX67791  rpc.mountd does not respond to mount requests
IX67792  Memory usage in libnsl
IX67793  Automount leaks memory
IX67794  EP: mount helper doesn't give error msg w/ bad delimiter
IX67795  NFS mount with secure option fails
IX67796  NFS Client cache flushed unnecessarily
IX67797  PPP:MP: Authenticaiton backoff does not funciton
IX67798  PPP:MP:First bundle member termination
IX67799  PPP:MP:Multilink packet order is not preserved
IX67800  PPP:MP:LCP Write Service hang
IX67801  MP: fragment loss doesn't toss fragment
IX67802  ldtty_wput: msgdsize, canput
IX67803  VSX test failed on c_iflag 3Y on MP
IX67804  DSI DUE TO RAWCC MISMANAGEMENT
IX67822  PS RUNS SLOW ON 42 MACHINES WITH LARGE #OF THREADS
IX67884  Can't change SCSI ID on CHRP systems
IX67886  Crash when unlaoding 2-port multiprotocol adapter
IX67887  DIAGNOSTIC KERNEL EXTENSIONS ARE NOT REMOVED FROM LOAD ENTRY
IX67888  Diag incorrectly uses bootinfo to determine architecture
IX67893  carry bit can be destroyed by floating point interrupt
IX67926  CORE DUMP WHEN EXECUTING LSGROUP ALL
IX67955  INVALID DEFAULT ROUTE
IX67978  O_SYNC writes are slow in AIX 4.2.1
IX67996  HOT: 41M/42G: getutent_r does not work as documented
IX68054  NEED TO REMOVE ASSERT IN EXIT()
IX68087  SECURITY: vulnerability in rpc.pcnfsd
IX68118  kanji character could not be printed in shell script
IX68119  WRONG RETURN VALUE IN CONNECTION WITH HERE DOCUMENT
IX68121  NIM Install capability added for 10/100 Mbs Ethernet MC Adapter
IX68145  Terlingua fails to report over-temp conditions
IX68176  No-prompt install hangs on fatal errors
IX68178  DSI IN V_PSCOUNT
IX68257  BLDBRK: pppcontrold breaks after 205804
IX68258  CCET: multilink ISDN fails with bidirectional authentication
IX68259  CCET: Slow ping response over multilink ISDN connection
IX68260  CCET: ISDN multilink demand connections lost communications
IX68367  SYSTEM CRASH WHEN INIT/FINI FUNCTIONS ARE USED.
IX68369  EP: printer queues go down
IX68445  ld: 0711-356 WARNING: The .text section may not be aligned
prop.
IX68447  MPV: 128 port adapter not in test list
IX68450  TTY logs overrun errors when GXT500 and SpaceBall installed
IX68451  getpwnam_r() does not return shadowed passwords
IX68454  infinate mctl messages sent from cxmadd
IX68457  inet_ntoa is not threadsafe
IX68461  X hangs with Interleaf 5.3 on GXT500
IX68462  TTYMP: double_open timeout
IX68500  Cannot bring up X after applying 4.2.1.0 level.
IX68515  rpc.mountd not started after install bos.net.nfs.client 4.2.1.1
IX68520  WHEN USING DCE INTEGRATED LOGIN A METHOD IS REQUIRED TO ALLOW
IX68569  MBUF LEAK IN NETINET WHEN USING SOCKET OPTIONS
IX68594  Faulty cleanup logic in comfail
IX68599  MEMORY DUMP PATH BAD FOR NTX ADAPTER
IX68614  /DEV/CONSOLE SHOULD NOT BE COMMONLY REVOKED
IX68616  C2 EVAL: audit status not FAIL_AUTH when authentication fails.
IX68684  IF_PPP CRASHING DUE TO BAD ARRAY INDEX
IX68719  STRINGS -T/-O OUTPUT NOT SAME IN 4.1 AND 4.2
IX68724  DHCP SERVER NEEDS TO ALLOW FOR REMOVAL OF ENTRIES
IX68728  Threads test fails when libc + libs 4.2.1.0 PTFs applied
IX68761  PERFORMANCE IMPROVEMENT OPTION TO FREE()
IX68768  MPV: 7025-F50 'all resources' test fails with SRN 826-921
IX68771  <sys/socketvar.h> is not c++ safe.
IX68772  MPV: Ethernet adapter does not show in test list.
IX68789  DOUBLE FREE WITH SNG INSTALLED
IX68794  Poor ATM performance on F40 and H10 secondary PCI bus
IX68795  F40-233 machine check w/ PCI ATM
IX68796  PCI ATM, CRC errors under high throughput load
IX68801  SECURITY: possible buffer overflow in gecos handling
IX68807  Microcode download problem with tape devices on 7013/JXX.
IX68810  Build Break: src/bos/kernel/sys/POWER/cdli_atmuser.h
IX68815  AUDITSELECT ABORTS WHEN /AUDIT FS IS FULL DUE TO BAD RETURN
IX68818  REFRESHING SYSLOGD MAY CAUSE FILE TABLE TO FILL UP
IX68819  NFS lock manager is not closing sockets correctly
IX68823  automount does not parse vers=2 as mount option
IX68840  code changes required to make ecp work correctly
IX68845  PERF: SanRemo driver should remove trace code
IX68864  NIM reporting errors updating the server
IX68880  system hangs during revoke()
IX68882  System Console definition screen comes up on only tty terminal
IX68891  can't mount remote dir. after rej. bos.net.nfs.clinet
IX68892  PERF: Receive overruns in J50 when driven by Wildcat
IX68926  HOT:CETMP: remote NFS locks don't work
IX68927  Limit sockpint workq size for KRPC UDP services.
IX68928  ISDN demand connections not always initiated correctly
IX68945  hangs while debugging a multi threaded
IX68962  NFS file lock may hang between 4.1.5 and 4.2.1
IX68978  Install hangs when trying to add 8f62 adapter in some configs
IX68981  syncd is leaving a core file in / after a NIM bos install.
IX68983  DHCP SHOULD NOT SUPPORT UNLISTED CLIENTS BY DEFAULT
IX68984  DHCPSD: client id should be returned in updatedns strings
IX68999  SYSLOGD MISSES LINES IN REPORTING STATUS
IX69047  PERFORMANCE PROBLEM WITH MLI SIDE OF NTX ADAPTER
IX69064  RTS FLOW CONTROL NOT WORKING ON NATIVE PORTS
IX69075  CRASH IN SODEQUEUE
IX69089  ndd leaks sockets and pcbs
IX69096  RTS FLOW CONTROL NOT WORKING ON CXIADD and CXMADD PORTS
IX69107  "LSSRC INVALID FOR DHCPSD"
IX69119  New lockids for PCI ethernet.
IX69120  New lock id for 10/100 Mbps ethernet.
IX69139  deinstal script checking for v=3 to determine if it 3.2 pkging
IX69143  GXT500/GXT500D causes 185/186 with backing store enabled on X
IX69144  Drag mail to Mail folder erases over Folder Names in Netscape
IX69175  Swap biods hang in xmalloc on diskless machines
IX69176  NFS client fails reading large files
IX69177  NFS client sync calculation is incorrect
IX69178  NFS client crash in nfs3_readdir() when system trace is used
IX69202  ATM LANE - ASSERT ON INVALID ARP RESPONSE
IX69205  remove stop/start restriction on PPP
IX69209  rsdd doesn't drain correctly the data
IX69210  DSI IN SRS_NSLIH_PEG
IX69297  EXPORTFS DOESN'T PROPERLY WORK WITH NETGROUPS
IX69314  PRESENTATION INDICATOR NOT SET RIGHT
IX69326  NFS CLIENT NEEDS TO AVOID READ AT END OF FILE
IX69360  GETROOTFS FAILS AFTER NETWORK BOOT
IX69390  kdupdone() passed invalid dupreq pointer ends in DSI
IX69435  Add a "-t" option to the  xxxYstat programs which will cause a
IX69436  SDLC COMIO emulator frees mbuf on failed transmit
IX69450  DISABLE LV STRIPING IF MAP FILES ARE REQUESTED
IX69454  rpc.rstatd is inefficient in it stats gathering
IX69484  ISDN performance degraded after extended running
IX69487  rdist crashes the system
IX69490  DSI- 128 port adapter problem
IX69514  bootpd needs to use mac address info for arp entries
IX69515  ATM deadlock after chatm_hard_fail
IX69548  MORE DOES NOT UNDERLINE WORDS IN MAN PAGES
IX69566  Need to recover AIX configuration variables if NVRAM cleared.
IX69578  SELECT WITH VMIN=0 BROKEN
IX69582  ATM LANE - allow smaller frame sizes on BUS mcast forward VCC
IX69587  syscall tables are unloaded when they are still being used.
IX69592  No smitty screen for MCA ethernet adapter
IX69604  CNS LOCKING PROBLEM
IX69620  An application trying to suspend on an aio request may hang.
IX69639  yppasswd exits with wrong error code
IX69642  Diag format may not format if disk capacity is unknown
IX69649  Local address lost in udp_output()
IX69653  BINDER FAILS WITH BOTH -BNOOBJREORDER -BINITFINI:
IX69667  TLI/XTI:Connection-less mode gets Invalid State after t_sync().
IX69706  SAR: PRINT ONLY LAST TWO DIGITS OF THE YEAR
IX69710  System crash in mmfs:mmfs_close
IX69711  LSUSER NOT LISTING CLASS AFTER 512 USERS
IX69713  RMNFSEXP DOES NOT ALLOW LONG ACCESS LISTS
IX69715  MEMORY LEAK IN RPC.RQUOTAD
IX69716  DROP THE NFSDS UNTIL THE DATA AVAIL
IX69717  YPBIND DOESN'T CLEAR THE CACHE WHEN STOPPED
IX69718  NFS mntinfo can truncate hostnames
IX69719  starting/stoping of portmap results in error messages.
IX69720  showmount reports blank directory when exportfs -i option used
IX69722  clntkudp_callit called m_free() with NULL argument
IX69724  TOO MUCH DATA SENT
IX69725  lsnfsexp -c does not provide complete info
IX69726  nfsmounthelper not handling error condition from server
IX69727  NFS onckern changes to accomodate CacheFS
IX69728  lsnfsmnt -c does not give llock info
IX69729  kudp() is not return valid parameter to NFS server
IX69730  nfs3rootvp/nfsrootvp is copying more than just host name
IX69731  NFS RPC layer does not call solisten() correctly
IX69732  crcmp() compare wrong in NFS client
IX69733  Symbol look-up for global symbol finds local definition
IX69767  loop in xtiso module using VST/XTI test suite :
IX69809  nfs client zero fills portions of a file
IX69815  Incorrect return values for test -w and test -x
IX69824  <fileset>.odmdel script not running if version = 00
IX69838  No console message when job is completed.
IX69844  BACKBYNAME EXITS WITH INCORRECT SIZE MESSAGE
IX69845  Incorrect colormap size for visual with depth 12 on GXT500.
IX69848  Application w/ 125 widgets causes X Server to be corrupted
IX69849  GXT500: animation stops when multiple DBE windows closed
IX69857  Drop msg for PII (SmintMCA)
IX69859  6093 Tablet won't configure with PS/2 keyboard on MCA system
IX69861  Change GXT800M to GXT850M (SmintMCA)
IX69864  MULTIPLE PROCESSES ARE ALLOWED TO BIND TO SAME UDP PORT
IX69865  TCP MSS minimum too high for discovered paths
IX69866  TIME_WAIT pcbs being timed out too soon.
IX69943  RUSEROK DOES NOT GET DOMAINNAME FROM NAME SERVICE
IX69946  No printing on IBM ProPrinter X24 with IEEE1284 (ECP) driver.
IX69950  POSSIBLE TAPE DRIVE ACCESS FAILURE
IX69952  break is received before data previously sent
IX69953  DSI IN LDTERM_FLUSH_MP
IX69977  MEMORY LEAK IN KORN SHELL ARRAYS
IX69979  Linking statically with shared object linked with -G fails
IX69988  VSU: gethostbyname() returns wrong h_errno
IX69996  NFS DOES NOT ALLOW MMAP AND LOCKF COMBINATION
IX70008  REDUCING VTIME FAILS
IX70052  PS AUX DOES NOT SORT THE OUTPUT BY CPU USAGE
IX70083  system hangs while running certain tests
IX70144  DCE messages confuse customer
IX70162  KANJI CHAR EXPANSION OVERWRITE
IX70175  Need SW workaround for Pegasus 6XX bus livelock
IX70196  crash in chatm_vc_refresh; PVC latency varies
IX70211  dhcp server fails to process multiple forwarded requests
IX70227  Non-detection of fan failures
IX70234  Diagnostics for LPF keys may return an 803 SRN
IX70246  snmpd needs to do wildcarding on views
IX70254  HOT: crash in sodequeue after 223196 applied
IX70270  set -o vi has a problem on MBCS locale
IX70272  N-1: Incorrect indication of cmd line vi ESC+_ on Ja_JP
IX70273  YEN mark is not correctly erased by Backspace.
IX70274  vi-edit-mode line overwrite broken in mb locales
IX70276  esc / doesn't work correctly with vi editor
IX70325  diskless machine hangs durning boot process
IX70327  Incorrect assert used in ah_get_rddir_work
IX70328  LSNFSMNT DOESN'T WORK CORRECTLY FOR OTHER LOCALES
IX70330  Initialize error_type and reassign
IX70337  YPPASSWD DOESN'T WORK WITHOUT ARGUMENT FOR SU-USER
IX70341  Request/Response performance problem in 100 modes
IX70346  CRASH IN SODEQUEUE
IX70354  Image tearing when animating with GXT500/D
IX70371  Add exported variable to check if libpthreads is initialized
IX70373  Target abort detected with ATM PCI 155 Mbps in Groupe Bull box
IX70382  AIX JIM can not convert user registered words (ex: Coffee, etc)
IX70389  /ETC/HOSTS.EQUIV IS ALLOWING WRONG USERS TO LOGIN
IX70393  dhcpsd not sending siaddr
IX70396  SECURITY: copycore creates world-readable dumps
IX70397  SECURITY: vulnerability in srcmstr
IX70398  Diskless machine to hangs @ LED c32 on reboot.
IX70411  nfs write ulimit check wrong


+----------------------------------------------------------------------+
| E-Mail VNET: kraemerf AT franvm3 DOT rscs / Internet: kraemerf AT vnet.ibm 
DOT com |
| ====== see me at     http://www.rz.uni-frankfurt.de/(tilde)kraemerf  |
+----------------------------------------------------------------------+


>----------
>From:  Bryan Baars[SMTP:bbaars AT CASECORP DOT COM]
>Reply To:      ADSM: Dist Stor Manager
>Sent:  Tuesday, September 16, 1997 3:12 PM
>To:    ADSM-L AT VM.MARIST DOT EDU
>Subject:       Performance problems
>
>We recently upgraded our RS/6000 box to AIX 4.2.  Prior to this upgrade,
>ADSM backups were taking anywhere from 1.5 to 2 hours to process.  Now,
>however, backups are taking 4.5 hours and even longer.  The amount of
>data being backed up is the same.  Here are some details about the
>server/upgrade:
>
>During the upgrade planning, IBM told us to install the following for
>ADSM and our Magstar tape drive:
>
>        Atape driver (for Magstar)      3.1.0.6
>        ADSM client                     2.1.0.6
>        ADSM Server                     2.1.5.13
>
>The server is a J40 with 4 CPUs.  There is one internal drive for
>rootvg.  This is where ADSM is installed, as well as the database,
>recovery log, and storage pool definitions.  This is the exact same
>configuration that we had prior to the upgrade (I realize storing the
>db, log, and stg. pools on the same disk will cause I/O contention - but
>we didn't experience these problems before...)
>
>In the ADSM backup logs, I see the data transfer rate vary anywhere from
>500KB/sec to 3,500KB/sec (yesterday's backup was around 3,500KB/sec, but
>the overall backup time took over 4 hours for 432MB total transfer with
>compression).  I would suspect some of the backups would take longer
>because I had a trace turned on, but even without the trace, the overall
>time was unbearable.  I have also noticed the system load average
>fluctuate between 1.00 and 15.00.  The CPU states also show very heavy
>kernel CPU usage, but then there can be 50% idle time.  iostat shows
>lots of small transfer rates while ADSM backs up small files (52KB -
>1000KB every 5 seconds) but more reasonable transfer rates (2MB-10MB
>every 5 seconds) while backing up larger files (20MB or bigger).  The
>ADSM trace files show a high time value in the Data Verb section, but I
>don't know what this means and whether or not this is normal.
>
>I have been working with ADSM support for two weeks now, and they
>haven't found any reasons why this is happening.  I've tweeked all the
>ADSM parms per their (IBM) recommendations.  In the last conversation I
>had with them, they wanted me to install the latest ADSM server patch
>2.1.5.15 and an OS bos patch that supposedly will help the process of
>ADSM writing to journaled filesystems.  I am leery of just throwing
>patches at my system - especially if IBM doesn't know if the patch will
>fix the problem.
>
>Has anyone experienced similar problems or does anyone have additional
>suggestions to help me troubleshoot this?  BTW - please respond directly
>to me (bbaars AT casecorp DOT com), I am still trying to get re-subscribed to
>this list.  Thanks in advance!
>--
>Bryan C. Baars                          CASE Corporation
>UNIX Administrator                      Racine, WI
>
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