speed up onspaces utility

We use raws stripped disk. IDS10 UC5, AIX 5.3 onspaces utility runing very slow, how can we speed it up? example, onspaces -c -d dbphylog -p /usr/informix/dev-links/int1/DBPHYLOG_INT1 -o 4 -s 896000 -m /usr/informix/dev-links/int1/MDBPHYLOG_INT1 4 Thanks,Frank

Yunyao (Frank) Qu wrote: > > We use raws stripped disk. IDS10 UC5, AIX 5.3 > > onspaces utility runing very slow, how can we speed it up? > > example, > onspaces -c -d dbphylog -p /usr/informix/dev-links/int1/DBPHYLOG_INT1 -o > 4 -s 896000 -m /usr/informix/dev-links/int1/MDBPHYLOG_INT1 4 Pretty much the only useful answer is: "Get faster disks." To create a dbspace onspaces has to initialize a large portion of the disk chunk being presented. That just takes time dependent on how fast your disk farm is. Art S. Kagel

Yunyao (Frank) Qu wrote: > > We use raws stripped disk. IDS10 UC5, AIX 5.3 > > onspaces utility runing very slow, how can we speed it up? > > example, > onspaces -c -d dbphylog -p /usr/informix/dev-links/int1/DBPHYLOG_INT1 -o > 4 -s 896000 -m /usr/informix/dev-links/int1/MDBPHYLOG_INT1 4 Pretty much the only useful answer is: "Get faster disks." To create a dbspace onspaces has to initialize a large portion of the disk chunk being presented. That just takes time dependent on how fast your disk farm is. Art S. Kagel

"Art S. Kagel" <kagel@bloomberg.net> wrote in message news:4514133B.2090901@bloomberg.net... > Yunyao (Frank) Qu wrote: >> >> We use raws stripped disk. IDS10 UC5, AIX 5.3 >> >> onspaces utility runing very slow, how can we speed it up? >> >> example, >> onspaces -c -d dbphylog -p /usr/informix/dev-links/int1/DBPHYLOG_INT1 -o >> 4 -s 896000 -m /usr/informix/dev-links/int1/MDBPHYLOG_INT1 4> > Pretty much the only useful answer is: "Get faster disks." To create a > dbspace onspaces has to initialize a large portion of the disk chunk being > presented. That just takes time dependent on how fast your disk farm is. Do you think so? Initialisation of raw disk should be more-or-less instantaneous, because IDS doesn't have to write all the binary zeros that it would to a cooked chunk. But even with a cooked chunk you'd not expect 900m to take more than a minute or two ...

Neil Truby wrote: > "Art S. Kagel" <kagel@bloomberg.net> wrote in message > news:4514133B.2090901@bloomberg.net... > >>Yunyao (Frank) Qu wrote: >> >>>We use raws stripped disk. IDS10 UC5, AIX 5.3 >>> >>>onspaces utility runing very slow, how can we speed it up? >>> >>>example, >>>onspaces -c -d dbphylog -p /usr/informix/dev-links/int1/DBPHYLOG_INT1 -o >>>4 -s 896000 -m /usr/informix/dev-links/int1/MDBPHYLOG_INT1 4>> >>Pretty much the only useful answer is: "Get faster disks." To create a >>dbspace onspaces has to initialize a large portion of the disk chunk being >>presented. That just takes time dependent on how fast your disk farm is. > > > Do you think so? Initialisation of raw disk should be more-or-less > instantaneous, because IDS doesn't have to write all the binary zeros that > it would to a cooked chunk. > > But even with a cooked chunk you'd not expect 900m to take more than a > minute or two ... Frank doesn't say "it's taking hours". He said it's 'slow'. Is a minute or two 'slow'? Besides for 10.00 there's a larger default tablespace tablespace to write out in the first chunk of a new dbspace. Art S. Kagel