Category Archive: General

May 31

HPE Data Protector A.09.00: Patch release history

Hewlett Packard Enterprise just released the all-new GR patches for Data Protector A.09.09 and I’ve just updated my release history slide to reflect that change. As usual the GR patches contain bug fixes and only a few minor enhancements. Here is a quick list of additions in the release: Firewall-friendly operation (reduce TCP port usage, not …

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Jun 11

List non-migrated DCBFs

If you need to deal with non-migrated DCBFs after an upgrade to Data Protector 8 or later, you might find this SQL query useful. It will display all non-migrated DCBFs (dcbf_version = -1) with references in the IDB. Don’t remove the old catalog using perl omnimigrate.pl -remove_old_catalog before all v1 DCBFs have been successfully migrated to v2. The migration …

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Jan 01

Investigating NDMP performance

I spend some time on the Data Protector NDMP Integration, especially to compare it to CIFS/NFS backups available with the regular Disk Agent. Luckily an older EMC Celerra NS20 was available and I was able start immediately. A quick look at the NDMP support matrix revealed no restrictions since the unit was running T5.6.50.203. To …

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Dec 30

Quiesced Snapshots for Exchange 2010 on vSphere 5.0

Due to an upgrade from vSphere 4.0 to 5.0 some of our virtual machines stopped working in VEPA/vStorage backup sessions. I’ve noticed that a quiesced snapshot using vCenter was not possible. I was able to fix the most of them by reinstalling VMware Tools to fix some VSS inconsistencies, but an Exchange 2010 VM caused …

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Dec 30

Drown a VM using Ressource Allocation

Just came across a strange effect, at least strange for a system administrator, related to VMware Ressource Allocation. When checking one of my virtual servers I’ve noticed a high memory usage compared to the running processes in Task Manager and Process Explorer. The barely no free RAM left. I was not able find a relation …

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Nov 29

Update Host Extensions using VUM

Have you ever wondered what happened to management agents the major server vendors provided in the past for VMware ESX? (e.g. HP Management Agents for VMware ESX) They have been moved into a more standardized framework within ESXi – the so called extensions. Those extensions are bundled with the regular ESXi installation media by most …

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Oct 31

Gentoo Linux: Hyper-V R2 Enlightenment

If you ever worked with Hyper-V on Windows 2008 R2 you might know the Linux support is still an issue compared to other hypervisors like VMware. In the meantime Microsoft official supports SLES and RHEL as Hyper-V R2 guests. To have them running smoothly, you should install the Linux Integration Services Version 3.1 for Hyper-V …

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Aug 10

EVA includes SVSP host mode

If your SVSP installation includes EVA4400/6400/8400 or even the new P6300/P6500 arrays running XCS 10000000 or later, you should change the host mode from Windows 2003 to SVSP for all DPM/VSM host objects. This new mode has been added because of minor modifications to the Windows 2003 host mode. (now includes ThP support) This feature …

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Oct 31

Changed from bblog to WordPress

As bblog was no longer actively maintained, I was forced to switch to something new. WordPress seems to be a good alternative. As it comes with some quite interesting features, you can expect to see something new here soon.