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SDU を使用して作成された LUN は、 Oracle データベースで使用した場合、アライメント不良として報告されます

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に適用されます

  • SnapDrive for Windows
  • SnapManager for Oracle(SMO)

問題

NetApp ストレージ・システムのコンソールlun show –vから、コマンドを実行すると、 LUN がアライメントされていないことがレポートされます。

netappstorage> lun show -v

/vol/orabackup_precg1asdl01/orabackup/orabackup_precg1asdl01_new.lun

/vol/orabackup_precg1asdl01/orabackup/orabackup_precg1asdl01_new

.lun 400.0g (429523992576) (r/w, online, mapped)

Serial#: HndnCZmKv33k

Share: none

Space Reservation: disabled

Multiprotocol Type: linux

Maps: precg1asdl01=0

Occupied Size: 6.5g (6926499840)

Creation Time: Mon Sep 10 14:25:43 MDT 2012

Alignment: misaligned

Cluster Shared Volume Information: 0x0

正しい OS タイプ設定( Linuxfdisk -u –l /dev/sdxx )で作成された LUN では、 UNIX ホストからコマンドを使用してこの情報が取得されます。

出力例: :

Disk /dev/sdbh: 429.5 GB, 429523992576 bytes

255 heads, 63 sectors/track, 52219 cylinders, total 838914048 sectors

Units = sectors of 1 * 512 = 512 bytes

Device Boot Start End Blocks Id System

/dev/sdbh1 8 838898234 419449113+ 83 Linux

原因

 

解決策

 

 

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