Tag: Big Sur


Dec 2021

No login window icon if your UID is too large

We ran into an interesting problem on some of our Xsan connected systems.  We created mobile accounts, but some of them wouldn’t show up at the Mac’s Login Window. These Macs are bound to an LDAP server and the user’s UniqueID (UID) comes from the LDAP server.  The UIDs are assigned based on user type, so while employees are small numbers, contractors have ended up...

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Nov 2021

If your Xsan volume isn’t mounting automatically

We have seen some systems where our Xsan volume(s) do not mount consistently on restart.  We have seen this occasionally on both macOS Catalina and Big Sur.  After confirming that the fibre channel HBA driver is loaded, and seeing that manually running xsanctl mount <volumeName> works as expected, we can turn to launchd to make sure the volume mounts.


Nov 2021

Load fibre drivers at startup

We have seen several Big Sur Macs at different locations not mount their Xsan volume after a restart or power on.   After some investigation, we have found that the fibre HBA driver is not loaded. This has happened with ATTO ThunderLink FC adapters, ATTO Celerity PCI cards, and Promise SANLink FC adapters, so it doesn’t appear to just be one bad driver. The first...

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