Fred,

In my shop we have 40 databases on HP-UX. I have dedicated file systems for
the Oracle databases. I see no problem in filling them 99 %, as long as no
datafiles are running in AUTOEXTEND mode.

I usually reserve a little space for the control files to grow. Yes I want
them to grow, because I have set CONTROL_FILE_RECORD_KEEP_TIME = 30 in order
to keep information about RMAN-backup in the control file for one month, if
I should be unlucky and loose my recovery catalog.

Many years ago I had a case on Digital Unix/SAP R3 with tar making sparse
files when restoring datafiles from tape. It was dangerous, when the
datafiles started to grow physically as new blocks were formatted, but it is
quite another story.

Regards
Jesper Norrevang

-----Oprindelig meddelelse-----
Fra: oracle-l-bounce@(protected)?
vegne af Fred Smith
Sendt: 6. juni 2006 14:05
Til: oracle-l@(protected)
Emne: High disk capacity dangers


Just wanted to run this by everyone here, I have a 9.2.0.6 database on
HP-UX. Some of my read only tablespaces are on a physical disk that I keep
at about 99% capacity (it's not going to grow obviously, it's read-only).
The new Unix SA is saying that it's unacceptable and dangerous to keep a
disk at 98,99, or 100% capacity. I always thought it could be even at 100%
capacity without any problems.

Is there any reason that anyone knows of as to why a disk should not be at
99% or 100% capacity?

Thank you!

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