[Info-vax] Defrag Fails on a Large Disk

[richard.l.dyson at gmail.com]

On Monday, February 26, 2018 at 8:30:17 PM UTC-6, richard... at gmail.com wrote:
> Hi,
> 
> I have an IA64 rx2660 running OpenVMS v8.1-1H1.  Can't upgrade to anything else,
> off support.  I have a single spindle disk, 600 GB SAS.  Every time I run Defrag (v3.0) I get this error:
> 
> %SYSTEM-W-ACCVIO, access violation, reason mask=!XB, virtual address=!XH, PC=!XH, PS=!XL
> 
> 
> Here are the spdisk details:
> 
> 
> Disk $30$DKA300: (NODEA), device type WD WD6001BKHG, is online, mounted, file-
>     oriented device, shareable, available to cluster, error logging is enabled.
> 
>     Error count                    0    Operations completed               1158
>     Owner process                 ""    Owner UIC                      [SYSTEM]
>     Owner process ID        00000000    Dev Prot            S:RWPL,O:RWPL,G:R,W
>     Reference count                1    Default buffer size                 512
>     Current preferred CPU Id       1    Fastpath                              1
>     WWID   02000008:5001-4EE7-AAAC-9186
>     Total blocks          1172123568    Sectors per track                   208
>     Total cylinders            22099    Tracks per cylinder                 255
>     Logical Volume Size   1172123568    Expansion Size Limit         1172250624
>     Allocation class              30
> 
>     Volume label               "ABC"    Relative volume number                0
>     Cluster size                   6    Transaction count                     1
>     Free blocks            497374356    Maximum files allowed          16711679
>     Extend quantity                5    Mount count                           1
>     Mount status              System    Cache name         "_$30$DKA7:XQPCACHE"
>     Extent cache size             64    Maximum blocks in extent cache 49737435
>     File ID cache size            64    Blocks in extent cache              600
>     Quota cache size               0    Maximum buffers in FCP cache       4650
>     Volume owner UIC        [SYSTEM]    Vol Prot    S:RWCD,O:RWCD,G:RWCD,W:RWCD
> 
>   Volume Status:  ODS-2, subject to mount verification, write-back caching
>       enabled.
> 
> There are a lot of files on this disk:
> 
> $ dir/grand/total/siz=all [...]*.*;*
> 
> Grand total of 19534 directories, 7689325 files, 607075030/674749212 blocks
> 
> Is this some issue with lack of system resources that Defrag needs when it is running due to the large # of files?  Here are System's UAF system resources:
> 
> Username: SYSTEM                           Owner:  SYSTEM MANAGER
> Account:  SYSTEM                           UIC:    [1,4] ([SYSTEM])
> CLI:      DCL                              Tables: DCLTABLES
> Default:  SYS$SYSROOT:[SYSMGR]
> LGICMD:   
> Flags: 
> Primary days:   Mon Tue Wed Thu Fri        
> Secondary days:                     Sat Sun
> No access restrictions
> Expiration:            (none)    Pwdminimum: 18   Login Fails:     5
> Pwdlifetime:           (none)    Pwdchange:   5-FEB-2014 13:41 
> Last Login:  2-DEC-2015 14:26 (interactive), 25-FEB-2018 00:13 (non-interactive)
> Maxjobs:         0  Fillm:       200  Bytlm:       256000
> Maxacctjobs:     0  Shrfillm:      0  Pbytlm:           0
> Maxdetach:       0  BIOlm:       150  JTquota:       4096
> Prclm:          10  DIOlm:       150  WSdef:         4096
> Prio:            4  ASTlm:       300  WSquo:         8192
> Queprio:         0  TQElm:       100  WSextent:     16384
> CPU:        (none)  Enqlm:      4000  Pgflquo:     700000
> Authorized Privileges: 
>   ACNT         ALLSPOOL     ALTPRI       AUDIT        BUGCHK       BYPASS
>   CMEXEC       CMKRNL       DIAGNOSE     DOWNGRADE    EXQUOTA      GROUP
>   GRPNAM       GRPPRV       IMPERSONATE  IMPORT       LOG_IO       MOUNT
>   NETMBX       OPER         PFNMAP       PHY_IO       PRMCEB       PRMGBL
>   PRMMBX       PSWAPM       READALL      SECURITY     SETPRV       SHARE
>   SHMEM        SYSGBL       SYSLCK       SYSNAM       SYSPRV       TMPMBX
>   UPGRADE      VOLPRO       WORLD
> Default Privileges: 
>   ACNT         ALLSPOOL     ALTPRI       AUDIT        BUGCHK       BYPASS
>   CMEXEC       CMKRNL       DIAGNOSE     DOWNGRADE    EXQUOTA      GROUP
>   GRPNAM       GRPPRV       IMPERSONATE  IMPORT       LOG_IO       MOUNT
>   NETMBX       OPER         PFNMAP       PHY_IO       PRMCEB       PRMGBL
>   PRMMBX       PSWAPM       READALL      SECURITY     SETPRV       SHARE
>   SHMEM        SYSGBL       SYSLCK       SYSNAM       SYSPRV       TMPMBX
>   UPGRADE      VOLPRO       WORLD
> Identifier                         Value           Attributes
>   NET$MANAGE                       %X91F50002      
> 
> 
> Any suggestions to try?  Or other info needed?
> 
> Thanks,
> Rick

$ Defrag Start VIS

But I will assume you want to know the script parameters.  The same for every disk I have ever defragged over the past 30 years. :)

Disk File Optimizer for OpenVMS DFG V3.0
© Copyright 2007 Hewlett-Packard Development Company,L.P.

Volume script VIS is ENABLED, LEVEL=1, device: DISK$VIS
No defragmentation process is executing
Scheduler queue contains the following operations:
    DEFRAGMENT VOLUME DISK$VIS on 02-MAR-2018 17:00:00.00
Consolidate freespace
Script repeat interval: 7 00:00:00.00
Defragmentation time limit 0 08:00:00.00
Minimum Priority: 3
Default Priority: 4
Script may operate on any available node
Log file: DISK$LAF:[Dyson]Defrag_VIS.log;/BRIEF
No prologue file specified
No epilogue file specified
Mail notification is ON
OPCOM notification is ON
Special file handling:
    Exclude all specifically placed files
Perform WRITE_CHECK on all files moved