Set a Max allocated size for a sellected storage path in db2
https://dba.stackexchange.com/questions/128553
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29-09-2020 - |
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I have a DB2 storage group with storage paths set like
C:\
D:\
E:\
Size of my C: drive is 100 GB and the other programs keep crashing because it fill data drive by one, even I can allocate more storage and extend this it first fill free space In my c:\ drive and move to new storage, I like to know is it possible to give a max size for 1 particular drive(storage path) and how?
NOTE : If I can change the PathState to 'NotInUse' will it fix this , will it effect the editing of the existing data in that path ?
INFO: DB2 10.1
C:\IBM\SQLLIB\BIN>db2pd -storagepaths -tablespaces -db DEMO
Database Member 0 -- Database DEMO -- Active -- Up 0 days 17:16:44 -- Date 02/09
/2016 11:06:24
Storage Group Configuration:
Address SGID Default DataTag Name
0x000007FFCCFCAE40 0 Yes 0 DEMOFORTEST
Storage Group Statistics:
Address SGID State Numpaths NumDropPen
0x000007FFCCFCAE40 0 0x00000000 2 0
Storage Group Paths:
Address SGID PathID PathState PathName
0x000007FFCCFF7560 0 0 InUse C:
0x000007FFCCFCAF60 0 1 InUse E:
Database Member 0 -- Database DEMO -- Active -- Up 0 days 17:16:44 -- Date 02/09
/2016 11:06:24
Tablespace Configuration:
Address Id Type Content PageSz ExtentSz Auto Prefetch BufID BufIDD
isk FSC NumCntrs MaxStripe LastConsecPg Name
0x000007FFC0018BC0 0 DMS Regular 32768 4 Yes 4 1 1
Off 1 0 3 SYSCATSPACE
0x000007FFC0021460 1 SMS SysTmp 32768 32 Yes 32 1 1
On 1 0 31 TEMPSPACE1
0x000007FFC002C360 2 DMS Large 32768 32 Yes 32 1 1
Off 1 0 31 USERSPACE1
0x000007FFC0035360 3 DMS Large 32768 4 Yes 4 1 1
Off 1 0 3 SYSTOOLSPACE
0x000007FFC003E300 4 DMS Regular 32768 16 No 16 1 1
Off 2 1 15 STORE_TS
0x000007FFC0047480 5 DMS Regular 32768 16 No 16 1 1
Off 2 1 15 INDEX_TS
0x000007FFC0055B00 6 DMS Large 32768 16 No 16 1 1
Off 2 1 15 LOB_TS
Tablespace Statistics:
Address Id TotalPgs UsablePgs UsedPgs PndFreePgs FreePgs
HWM Max HWM State MinRecTime NQuiescers PathsDropped TrackmodStat
e
0x000007FFC0018BC0 0 7168 7164 6944 0 220
6944 6944 0x00000000 0 0 No n/a
0x000007FFC0021460 1 1 1 1 0 0
0 0 0x00000000 0 0 No n/a
0x000007FFC002C360 2 1024 992 96 0 896
96 96 0x00000000 0 0 No n/a
0x000007FFC0035360 3 1024 1020 80 0 940
80 80 0x00000000 0 0 No n/a
0x000007FFC003E300 4 1477648 1477616 1476624 0 992
1476624 1476624 0x00000000 0 0 No n/a
0x000007FFC0047480 5 248832 248800 247792 0 1008
247792 247792 0x00000000 0 0 No n/a
0x000007FFC0055B00 6 9134368 9134336 9134112 0 224
9134112 9134112 0x00000000 0 0 No n/a
Tablespace Autoresize Statistics:
Address Id AS AR InitSize IncSize IIP M
axSize LastResize LRF
0x000007FFC0018BC0 0 Yes Yes 33554432 -1 No N
one None No
0x000007FFC0021460 1 Yes No 0 0 No 0
None No
0x000007FFC002C360 2 Yes Yes 33554432 -1 No N
one None No
0x000007FFC0035360 3 Yes Yes 33554432 -1 No N
one None No
0x000007FFC003E300 4 Yes Yes 33554432 -1 No N
one 02/09/2016 10:12:09.687557 No
0x000007FFC0047480 5 Yes Yes 33554432 -1 No N
one 02/09/2016 10:52:17.557144 No
0x000007FFC0055B00 6 Yes Yes 33554432 -1 No N
one None No
Tablespace Storage Statistics:
Address Id DataTag Rebalance SGID SourceSGID
0x000007FFC0018BC0 0 0 No 0 -
0x000007FFC0021460 1 0 No 0 -
0x000007FFC002C360 2 -1 No 0 -
0x000007FFC0035360 3 -1 No 0 -
0x000007FFC003E300 4 -1 No 0 -
0x000007FFC0047480 5 -1 No 0 -
0x000007FFC0055B00 6 -1 No 0 -
Containers:
Address TspId ContainNum Type TotalPgs UseablePgs PathID Str
ipeSet Container
0x000007FFC00558C0 0 0 File 7168 7164 0 0
C:\DB2\NODE0000\DEMO\T0000000\C0000000.CAT
0x000007FFC002A080 1 0 Path 1 1 1 0
E:\DB2\NODE0000\DEMO\T0000001\C0000000.TMP
0x000007FFC00350A0 2 0 File 1024 992 0 0
C:\DB2\NODE0000\DEMO\T0000002\C0000000.LRG
0x000007FFC003E040 3 0 File 1024 1020 0 0
C:\DB2\NODE0000\DEMO\T0000003\C0000000.LRG
0x000007FFC0047040 4 0 File 1303568 1303552 0 0
C:\DB2\NODE0000\DEMO\T0000004\C0000000.USR
0x000007FFC0047250 4 1 File 174080 174064 1 1
E:\DB2\NODE0000\DEMO\T0000004\C0000001.USR
0x000007FFC0050220 5 0 File 164864 164848 0 0
C:\DB2\NODE0000\DEMO\T0000005\C0000000.USR
0x000007FFC0050430 5 1 File 83968 83952 1 1
E:\DB2\NODE0000\DEMO\T0000005\C0000001.USR
0x000007FFC0050BE0 6 0 File 6504736 6504720 0 0
C:\DB2\NODE0000\DEMO\T0000006\C0000000.LRG
0x000007FFC0050DF0 6 1 File 2629632 2629616 1 1
E:\DB2\NODE0000\DEMO\T0000006\C0000001.LRG
Solution
Containers for tablespaces 4-6 seem seriously unbalanced, I guess the E: path was added recenty. One thing you could start with is rebalance them:
alter tablespace STORE_TS rebalance
etc.
You cannot control maximum size of a storage path, only a tablespace maximum size (which is calculated across all paths). If tablespace growth is causing harm on C: you should remove C: from the database storage paths altogether:
alter stogroup DEMOFORTEST drop 'C:'
Alternatively you can move the tablespaces that keep growing to a different, new storage group that does not use C:
