"How much capacity do you lose when defining Linux DASD volumes(ECKD) as
minidisk under zVM?"
I remember the 4K formatting of ECKD dasd lost roughly 18% of capacity.
"How much capacity do you lose when defining Linux DASD volumes
(SCSI-ZFCP) at FBA 4k blocksizes?"
No loss using scsi FBA. 4K block uses 512-byte FBA blocks in groups of 8
"(3) Provide TSM BA client to provide backups at a file level"
We use the TSM BA client on zLinux for file level backups.
"(4) Is there a Tivoli Data Protection Product for Databases on the
Linux
platform?"
There is a Tivoli Data Protection for Oracle for zLinux;
Oracle's RMAN interfaces with it.
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-----Original Message-----
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Melancon, Ruddy
Sent: Thursday, July 03, 2008 11:26 AM
To: [email protected]
Subject: Linux DASD Questions
Our Linux Operating System under zVM is up and running, We have
installed an Oracle database application on this image. The Oracle
database is shutdown or in read-only mode and zOS or zVM performs a
flashcopy of the Linux volumes (zVM minidisks. Is this a crash
consistent backup of all the Linux DASD volumes? Is there a data
integrity exposure and how significant is it when compared to other
operating systems like zOS or zVM? The DASD volumes are defined as ext3.
Let's suppose that there is a data integrity issue, then how are we
suppose to provide Global Mirroring (PPRC-xd) using TPC Replication
creating consistency groups every 30 secs?
How much capacity do you lose when defining Linux DASD volumes(ECKD) as
minidisk under zVM?
How much capacity do you lose when defining Linux DASD volumes
(SCSI-ZFCP) at FBA 4k blocksizes?
Our customer would like to automate backups using the following
techniques: Please comment.
(1) Quiese or shutdown Oracle Database under a Linux Guest.
Flashcopy all Linux volumes (from zOS)
Backup all Flashcopy volumes via DFSMSdss Full volume physical dump
(from zOS)
(2) Provide TPC Replication Global Mirroring for all Linux volumes
(3) Provide TSM BA client to provide backups at a file level
(4) Is there a Tivoli Data Protection Product for Databases on the Linux
platform?
Ruddy A. Melancon
Finance Department - ISD
State of Alabama
Suite 102
64 North Union Street
Montgomery, AL 36130
Office 334.353.7275
Fax 334.240.3177
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