Ops Log tag
#ITOps
Reviewed Ops Log notes tagged ITOps, written by Michal Jatczak with source links, test context and operational checks.
6 reviewed notes
An Azure vCPU family quota can show ten cores free while every size in that family is restricted for the subscription
az vm list-usage reports vCPU quota per VM size family. Measured 2026-09-15 on one subscription: a family read 0 of 10 vCPUs used while all 10 of its sizes carried a NotAvailableForSubscription restriction in the same region. Check az vm list-skus with --all before planning.
A Microsoft 365 DKIM CNAME target has two documented formats: read it per domain, never build it
Microsoft documents two DKIM CNAME target formats for Microsoft 365 custom domains, one ending in onmicrosoft.com and one in dkim.mail.microsoft. The page splits them by new versus existing custom domain and never mentions tenant age. Read each domain's values with Get-DkimSigningConfig.
Teams call records left chat retention policies in late April 2026: the replacement policy is PowerShell only
Since late April 2026 a new Teams call data record is covered only by a retention policy for the Teams call logs location, which exists only in PowerShell and reaches nothing created before it went active. The old chat policy stays green. This note gives the read-only check and the boundary of the gap.
Leaving a general-purpose v1 storage account alone is treated as consent, and the unattended upgrade lands in Hot
Azure retires general-purpose v1 storage accounts on 13 October 2026 and migrates whatever is left. Microsoft records that inaction as consent. The upgrade is permanent, transaction pricing differs, and an upgrade that names no access tier lands in Hot. Inventory the accounts and decide the tier per account.
Windows 11 24H2 stops receiving updates a year earlier on Pro than on Enterprise, from the identical build
Windows 11 version 24H2 ends updates on 2026-10-13 for the Pro family and on 2027-10-12 for the Enterprise family, from one table row and one identical build. Count the fleet by edition, not by build, before the earlier date arrives.
Auto-renew off without an explicit cancel bills as an Extended Service Term
In the Microsoft CSP program, setting an EST-eligible subscription to auto-renew false with no explicit cancel instruction converts it to a paid Extended Service Term that renews monthly. The API confirms the cancelled state first and a background job reverses it, so the read-back has to happen the next day.