Oracle Space Issue

Dear All,
i installed 3 instances in 1 server , and my Quality Server its shows
97% /oracle/IRQ/sapdata1 
95% /oracle/IRQ/sapdata2
98% /oracle/IRQ/sapdata3
99% /oracle/IRQ/sapdata4
note : i am taking Online Backup once in week  (frequency 7days)
how can i resolve this Space issue
pls give me suggestion
ROOT@SAPDEVQA:/#su - orairq
APDEVQA:orairq 1> df -gt
dev/sapqaclv      7.00      1.23      5.77   18% /usr/sap/IRQ
dev/qacexelv      6.00      5.75      0.25   96% /sapmnt/IRQ
dev/oraqacsidlv      4.00      3.11      0.89   78% /oracle/IRQ
dev/oraqachomelv     10.00      3.53      6.47   36% /oracle/IRQ/102_64
dev/sapqacreorglv      2.00      0.02      1.98    1% /oracle/IRQ/sapreorg
dev/qacdata1lv     39.00     37.66      1.34   97% /oracle/IRQ/sapdata1
dev/qacdata2lv     35.00     32.93      2.07   95% /oracle/IRQ/sapdata2
dev/qacdata3lv     42.00     41.08      0.92   98% /oracle/IRQ/sapdata3
dev/qacdata4lv     38.00     37.31      0.69   99% /oracle/IRQ/sapdata4
dev/oqaclogalv      0.50      0.11      0.39   22% /oracle/IRQ/origlogA
dev/mqaclogalv      0.50      0.10      0.40   20% /oracle/IRQ/mirrlogA
dev/mqaclogblv      0.50      0.10      0.40   20% /oracle/IRQ/mirrlogB
dev/oraarchqaclv     10.00      3.26      6.74   33% /oracle/IRQ/oraarch
regards
satheesh
Edited by: satheesh0812 on Dec 4, 2009 6:43 AM

Hi Eric,
we have 1 server with 3 Instanence  (DEV , Quality , BIW).
we have 320 GB Hard disk now ,
i plan to increase and existing sapdata partitions:
/dev/sapdevlv     7340032   1549552   5790480   22% /usr/sap/IRD
/dev/devexelv     3145728    927604   2218124   30% /sapmnt/IRD
/dev/oradevsidlv     1048576    334684    713892   32% /oracle/IRD
/dev/oradevhomelv    10485760   6855104   3630656   66% /oracle/IRD/102_64
/dev/sapdevreorglv     2097152     22416   2074736    2% /oracle/IRD/sapreorg
/dev/devdata1lv    36962304  29507424   7454880   80% /oracle/IRD/sapdata1
/dev/devdata2lv    36700160  28631488   8068672   79% /oracle/IRD/sapdata2
/dev/devdata3lv    41418752  35806444   5612308   87% /oracle/IRD/sapdata3
/dev/devdata4lv    36700160  26528128  10172032   73% /oracle/IRD/sapdata4
/dev/odevlogalv      524288    112448    411840   22% /oracle/IRD/origlogA
/dev/odevlogblv      524288    112452    411836   22% /oracle/IRD/origlogB
/dev/mdevlogalv      524288    102820    421468   20% /oracle/IRD/mirrlogA
/dev/mdevlogblv      524288    102816    421472   20% /oracle/IRD/mirrlogB
/dev/oraarchdevlv    20185088   3345728  16839360   17% /oracle/IRD/oraarch
/dev/sapqaclv     7340032   1368368   5971664   19% /usr/sap/IRQ
/dev/qacexelv     6291456   1576164   4715292   26% /sapmnt/IRQ
/dev/oraqacsidlv     4194304   3743628    450676   90% /oracle/IRQ
/dev/oraqachomelv    10485760   3703700   6782060   36% /oracle/IRQ/102_64
/dev/sapqacreorglv     2097152     19432   2077720    1% /oracle/IRQ/sapreorg
/dev/qacdata1lv    40894464  39492152   1402312   97% /oracle/IRQ/sapdata1
/dev/qacdata2lv    36700160  34550020   2150140   95% /oracle/IRQ/sapdata2
/dev/qacdata3lv    44040192  43200176    840016   99% /oracle/IRQ/sapdata3
/dev/qacdata4lv    39845888  39124052    721836   99% /oracle/IRQ/sapdata4
/dev/oqaclogalv      524288    114408    409880   22% /oracle/IRQ/origlogA
/dev/oqaclogblv      524288    114404    409884   22% /oracle/IRQ/origlogB
/dev/mqaclogalv      524288    102820    421468   20% /oracle/IRQ/mirrlogA
/dev/mqaclogblv      524288    102824    421464   20% /oracle/IRQ/mirrlogB
/dev/oraarchqaclv    10485760   9273880   1211880   89% /oracle/IRQ/oraarch
/dev/sapbwdevlv     8388608   8330816     57792  100% /usr/sap/IBD
/dev/bwdevexelv     5242880   2362552   2880328   46% /sapmnt/IBD
/dev/orabwdevsidlv     2097152   1864044    233108   89% /oracle/IBD
/dev/orabwdevhomelv     7340032   3684792   3655240   51% /oracle/IBD/102_64
/dev/sapbwdevreorglv     2097152     20648   2076504    1% /oracle/IBD/sapreorg
/dev/bwdevdata1lv    22544384  21261104   1283280   95% /oracle/IBD/sapdata1
/dev/bwdevdata2lv    27262976  25994144   1268832   96% /oracle/IBD/sapdata2
/dev/bwdevdata3lv    20971520  12476120   8495400   60% /oracle/IBD/sapdata3
/dev/bwdevdata4lv    20971520  10387188  10584332   50% /oracle/IBD/sapdata4
/dev/obwdevlogalv      524288    112808    411480   22% /oracle/IBD/origlogA
/dev/obwdevlogblv      524288    112804    411484   22% /oracle/IBD/origlogB
/dev/mbwdevlogalv      524288    102824    421464   20% /oracle/IBD/mirrlogA
/dev/mbwdevlogblv      524288    102820    421468   20% /oracle/IBD/mirrlogB
/dev/oraarchbwdevlv    10485760   7701168   2784592   74% /oracle/IBD/oraarch
how can i partition that 320 GB  to three Instanence  (DEV, QTY, BW) or i  can partition 320 GB to (DEV,QTY,BW)Datafiles only
regards

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