If Your Root Flexvol Volume Does Not Meet The New Size Requirements; Nondisruptive Upgrades On Systems With Vmware Esx Server Hosts - IBM N Series Manual

About this task
1. Check your system's capacity by entering the following command:
df -A
If the capacity field shows...
96% or less for all aggregates
97% or more for any aggregate
2. Download the Aggregate Space Checker (aggrSpaceCheck) from the IBM N
series support website, which is accessed and navigated as described in
"Websites" on page 149.
After downloading the Aggregate Space Checker, use the tool's Reference
Guide to install and use it to assess the free space requirements for your
system in Data ONTAP 7.3 and later releases. If you do not have sufficient
free space, the tool will recommend a course of action to ensure a
successful upgrade.
After using these tools and completing the upgrade, make sure that your
space guarantees are configured according to your requirements.

If your root FlexVol volume does not meet the new size requirements

The minimum required size for root FlexVol volumes has been increased for
every system running Data ONTAP 8.0 release family or later. If your root
FlexVol volume does not meet the new requirements, you should increase its
size as soon as you complete the upgrade procedure.
The root volume must have enough space to contain system files, log files,
and core files. If a system problem occurs, these files are needed to provide
technical support.
For more information about root volumes and the root FlexVol volume
requirements for your platform, see the Data ONTAP 8.0 7-Mode System
Administration Guide.

Nondisruptive upgrades on systems with VMware ESX Server hosts

Before performing a nondisruptive upgrade on storage systems exporting data
over NFS to VMware ESX Server hosts, you should verify that your clients'
NAS components are correctly configured. This verification will help ensure
that VMware guest operating systems do not experience service disruption
during the upgrade.
In particular, the following parameters should be set correctly:
Then...
You can proceed with your upgrade to
Data ONTAP 7.3; no further action is
required.
Continue to plan your upgrade with the
aggrSpaceCheck tool listed in Step 2.
Important cautions
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