RE: clearing raw devices
- From: "Randy Johnson" <oraclelist@xxxxxxxxxxxxx>
- To: <ujang.jaenudin@xxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
- Date: Tue, 4 Sep 2007 20:57:07 -0500
That should work just fine. Oracle will only use blocks it has initialized
so everything outside that range will be ignored.
Randy Johnson
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx]
On Behalf Of Ujang Jaenudin
Sent: Wednesday, August 29, 2007 3:08 AM
To: oracle-l@xxxxxxxxxxxxx
Subject: clearing raw devices
dear all,
i have plan to create a new database to a storage that have ever been used.
instead clearing all raw devices by :
dd if=/dev/zero of=/dev/rdsk/c0......
i will clear only some blocks (header block), for save time purpose:
dd if=/dev/zero of=/dev/rdsk/c0..... bs=8192 count=100000
is there any issues regarding performance or storage status.... if I clear
only header.....???
coz a raw devices may reach 30GB and the sum of them are until 1 TB
i think by using raw, oracle will replace whatever contents on the raw
devices...
thanks for the sharing
--
regards
ujang
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