David wrote: >TotalStorage Provisioning Center, I'd guess. It's the newfangled disk array >management widget for setting up replication, etc.
Ah, googling reveals Tivoli Total Storage Productivity Center (TSPC) - I knew it - you see a T and Tivoli is in there. But is that the same as TPC? What I am familiar with is GDPS/XRC. That depends on the operating system including timestamps within each i/o. Linux does that (and has for a long time). >Requirement time, I'd say. It's long past time that IBM supported all the >functions for their disks from all the operating systems. Oh, they're not the only ones :) Marcy "This message may contain confidential and/or privileged information. If you are not the addressee or authorized to receive this for the addressee, you must not use, copy, disclose, or take any action based on this message or any information herein. If you have received this message in error, please advise the sender immediately by reply e-mail and delete this message. Thank you for your cooperation." -----Original Message----- From: Linux on 390 Port [mailto:[email protected]] On Behalf Of David Boyes Sent: Friday, October 16, 2009 5:29 PM To: [email protected] Subject: Re: [LINUX-390] TPC Replication and Linux On 10/16/09 5:37 PM, "Marcy Cortes" <[email protected]> wrote: > What does that mean - consistency group every 30 seconds? What's TPC? TotalStorage Provisioning Center, I'd guess. It's the newfangled disk array management widget for setting up replication, etc. > If you go all the way to single user mode, why not just go all the way down > and be sure? I'll second that. Single-user does not guarantee any on-disk consistency with what is in memory. If you want to guarantee a consistent image, then you must take it all the way down *and log off* to force the Linux kernel to write everything to disk and have a guaranteed clean disk image. TPC has no way to know what is still pending being flushed, and it cannot create a consistent image without that knowledge. There is no support for notifying the disk controllers from VM or Linux of what is still waiting, and there are no VM or Linux utilities to convey that information. Requirement time, I'd say. It's long past time that IBM supported all the functions for their disks from all the operating systems. -- db ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
