RMAN restore 128K write chunks(buffer size)
From: <Laimutis.Nedzinskas_at_seb.lt>
Date: Wed, 21 Aug 2013 13:01:08 +0300
Message-ID: <OF89E858D7.C1248120-ONC2257BCE.00368AC0-C2257BCE.0037095A_at_seb.lt>
Hi,
Did anybody struggled with RMAN restore doing datafile writes in small 128K chunks ?
128K is RMAN buffer size which is clearly a torment of underlying storage. Metallink note 1072545.1. describes various parameters like _backup_ksfq_bufsz and _db_file_direct_io_count but I haven't got a chance to test them.
Date: Wed, 21 Aug 2013 13:01:08 +0300
Message-ID: <OF89E858D7.C1248120-ONC2257BCE.00368AC0-C2257BCE.0037095A_at_seb.lt>
Hi,
Did anybody struggled with RMAN restore doing datafile writes in small 128K chunks ?
128K is RMAN buffer size which is clearly a torment of underlying storage. Metallink note 1072545.1. describes various parameters like _backup_ksfq_bufsz and _db_file_direct_io_count but I haven't got a chance to test them.
Brgds, Laimis N
-- http://www.freelists.org/webpage/oracle-lReceived on Wed Aug 21 2013 - 12:01:08 CEST