It's been a while since we announced an update to Exchange 2007 Mailbox Server Role Storage Requirements Calculator.
Yesterday we have updated the calculator to version 13.0. Updates:
We have...
Updated Jul 01, 2019
Version 2.0
Blog Post
2 MIN READ
Exchange 2007 Mailbox Server Role Storage Requirements Calculator updated to v 13.0
Ross,
Thanks for the explanation regarding the sizing of the RSG. When you state that with up to 50 SGs, "there is a risk that multiple SG failures could occur, so we want to size the restore LUN to ensure that you can survive multiple failures".
Generally, we treat the RSG as the mechanism by which we restore a mailbox or items to a mailbox or export a mailbox to a PST, but you seem to be saying that the RSG is used for disaster recovery purposes. Any time we've had a disk subsystem failure that caused stores to go offline, we've never used the RSG to recover.
I must be missing something or haven't encountered the kinds of emergencies that you have. I just can't seem to understand the need for a large RSG/maintenance volume. Can you describe a scenario where multiple SGs failed and you resorted to utilizing the RSG disk space?
Again, thanks. I appreciate all of your feedback and assistance, and the tool is a real time saver for us.
Regards,
Sean
Thanks for the explanation regarding the sizing of the RSG. When you state that with up to 50 SGs, "there is a risk that multiple SG failures could occur, so we want to size the restore LUN to ensure that you can survive multiple failures".
Generally, we treat the RSG as the mechanism by which we restore a mailbox or items to a mailbox or export a mailbox to a PST, but you seem to be saying that the RSG is used for disaster recovery purposes. Any time we've had a disk subsystem failure that caused stores to go offline, we've never used the RSG to recover.
I must be missing something or haven't encountered the kinds of emergencies that you have. I just can't seem to understand the need for a large RSG/maintenance volume. Can you describe a scenario where multiple SGs failed and you resorted to utilizing the RSG disk space?
Again, thanks. I appreciate all of your feedback and assistance, and the tool is a real time saver for us.
Regards,
Sean