The Storage Platform comes with many reports with all sorts of info, but there is no report on mirror details like disk space used per account. Although it should mirror the data usage on the StorageServer, the problem becomes tricky when you have different retention settings for the MirrorServer, and pretty much impossible when you have a shared MirrorServer hosting data from several Storage Platforms.
We have now introduced the ability to extract account details from any StorageServer or MirrorServer using REST (from SP v8.15.1130.12101). Just specify the right URL and off you go. Based on the login credentials you supply, the call will return either everything (for the admin account) or a subset of the data (for any mirror accounts). The details will also contain the mirror account which was used to mirror the data (MirrorUser field).
The result can be in CSV, XML, JSON or TXT format depending on how you specify the URL:
https://192.168.1.1:8443/api/storage/accounts.csv https://192.168.1.1:8443/api/storage/accounts.xml https://192.168.1.1:8443/api/storage/accounts.json https://192.168.1.1:8443/api/storage/accounts.txt
You can also narrow down the results based on one or several of the fields, e.g.
Example TXT output
AccountGroup=Testgroup AccountGuid=0073026f-9dc2-4ae6-9378-156ccf901b53 AccountName=John.Smith AccountType=Backup Active=True BackupCount=23 ClientVersion=8.15.1106.12441 HomeSSId=43160a5b7c8 HSMExportedCount=0 HSMExportedSize=0 LastBackupDate=2015-12-09T00:00:04 Limit=10737418240 MirrorUser=admin OnDisk=220441606 ProtectedSizeAllBackups=12689789588 ProtectedSizeLastBackup=551729980 SelectedSize=551729152 SourceSSId=43160a4bb7c8
To get the results for a specific mirror account you can either use the specific mirror account credentials to make the call or use the admin credentials and filter on the MirrorUser field.