Category Archives: NetApp

NetApp SnapLock Compliance clock

Found something interesting out today – the internal compliance clock used by NetApp’s Data ONTAP OS when SnapLock is enabled will stop if any snaplock_compliant volume is taken offline. This will result in skewing the compliance clock from the system … Continue reading

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NetApp vfiler / Multistore quick notes

For a good primer on the NetApp Multistore license check NetApp or Scott Lowe Quick notes on multistore: vfiler0 is the “root” or base and owns all the hardware. Only vfiler0 can use FCP. vfilers have a limited range of … Continue reading

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NetApp hot disks

If you run stats show disk:*:disk_busy on a NetApp filer to check for “hot” disks (where instead of the workload being spread evenly, one or more disks are being overused) you might wonder exactly which disk is which: disk:1011CEF0:FF1C5209:2623F1CB:314011A0:00000000:…:disk_busy:46% disk:24EFB7F4:CA46E36F:13F664F4:06469F84:00000000:…:disk_busy:22% … Continue reading

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VMDK alignment (Free p2v / v2v)

Disk alignment is a known problem in virtual environments. Older guest OS (primarily Windows before 2008 tho *nix has the same issue) would start their partitions slightly off the boundary which could cause an increased amount of IOPS. You can … Continue reading

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Management Automation

PowerShell has been embraced by a variety of companies looking to manage their products from a command line. While VMware started out with a Perl-based script set, they quickly expanded to a PowerShell set of commandlets. The official VMware Automation … Continue reading

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What storage should I use? (was: FisherPrice of storage arrays)

The first SAN I worked on was an old Dell-branded EMC that Dell called the PowerVault 550 (=EMC AX100?). It had several interfaces that were all required to manage it, was complicated as hell and rock solid no matter what … Continue reading

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NetApp goes to 11

I was reading through the online documentation for NetApp filers (really, who doesn’t in their spare time?) and at the end of the doc page listing all of the options settings is this gem: BUGS A perfect appliance would need … Continue reading

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