Home » Infrastructure » Other Operating Systems » OS read / write block size? Configurable?
OS read / write block size? Configurable? [message #113655] Tue, 03 April 2001 19:36 Go to next message
Kok Hwa
Messages: 5
Registered: March 2001
Junior Member
Hi Guru,
I am from Unix background, very new to OS/390.

Regarding OS/390 OS read / write block size :
- what is the default read / write block size?
- is this configurable / user defineable?
- what is the prefer block size to host Oracle 8.1.7?

Any clue or reference (URL etc) would be really appreciated.

Thanks in advance.

Cheers. KokHwa.
Re: OS read / write block size? Configurable? [message #113656 is a reply to message #113655] Thu, 05 April 2001 08:37 Go to previous messageGo to next message
Jim Gillespie
Messages: 23
Registered: January 2001
Junior Member
: Hi Guru,
: I am from Unix background, very new to OS/390.

: Regarding OS/390 OS read / write block size :
: - what is the default read / write block size?
: - is this configurable / user defineable?
: - what is the prefer block size to host Oracle 8.1.7?

: Any clue or reference (URL etc) would be really appreciated.

: Thanks in advance.

: Cheers. KokHwa.

In 8.1.7 the only blocksize that is allowed is 4K. When Oracle9i comes
out that will change.
Re: OS read / write block size? Configurable? [message #113668 is a reply to message #113656] Thu, 19 April 2001 00:41 Go to previous message
Kok Hwa
Messages: 5
Registered: March 2001
Junior Member
Hi Jim Gillespie,
Sorry for my unclear question.

My block size question is with regards to OS rather then Oracle db_block_size.

For Example in Unix, OS read / write block size is always 512 bytes. I believe it is fix and NOT configurable.

Thanks in advance.
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