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Tag Archives: vSphere5
Changing VM reservations on the fly
Heard a question the other day in regards to changing virtual machine reservations on the fly and the resulting impact on the size of the swap (.vswp) file. Every running virtual machine on a VMware ESX/i host has a .vswp … Continue reading
Posted in Cloud, Computing, Virtualization, VMware Tagged ESX, ESXi, reservation, troubleshoot, vSphere, vSphere5 Leave a comment
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
VMware iSCSI Multipath (set all PSPs)
iSCSI Multipath Post 1 (basic) iSCSI Multipath Post 2 (Equallogic script) iSCSI Multipath Post 3 (vSphere5) I found a script at VMware’s PowerShell blog about setting all your LUN Path Selection Policy’s to Round Robin. This is a great trick … Continue reading
Posted in PowerShell, Scripting, Storage, Virtualization, VMware Tagged ESX, ESXi, iSCSI, multipath, round robin, vSphere5 Leave a comment
vSphere5: VSA overhead
VMware has announced/shipped a software-based clustered storage solution for vSphere5 called Virtual Storage Appliance. It is intended for the SMB space for those who do not want the cost/complexity of a hardware storage array. Couple of issues right off the … Continue reading
Posted in Cloud, Computing, Storage, Virtualization, VMware Tagged storage, vmware, vSphere5 2 Comments
vSphere5: ICM changes
Changes for ICM 5 – folks new to vSphere won’t be hammered by full days and advanced features. Advanced users and those with some experience will want to look into the yet-to-be finalized advanced classes. Note also ICM 5 won’t … Continue reading
VMware iSCSI Multipath (vSphere5)
Update: tag all Round Robin LUNs in one script I’ve posted about Multipath twice before: manual command-line and using the Equallogic script. With vSphere5 you can now do it all from the GUI tho admittedly with many more steps. Disclaimer: … Continue reading
Posted in Cloud, Computing, Storage, Virtualization, VMware Tagged #vstorage, ESXi, iSCSI, multipathing, vSphere, vSphere5 5 Comments
SSD, Overcommit and vSphere5 licensing
vSphere5 licensing has been discussed quite a bit lately, here’s another quick take. Memory overcommitment has been a VMware staple for many years and has been used extensively in price comparisons especially in the SMB space. Host Cache (aka local … Continue reading
Consolidate Snapshots
I wrote a post a while back detailing a few ways to correct “stuck” snapshots – delta files that existed on the datastore but were not reported by the GUI. vSphere 5 has a new method of removing them straight … Continue reading
Upgrade and Expand vSphere5 VMFS partition > 2TB
Quick steps to expand a 2TB VMFS3 datastore to >2TB with vSphere5 VMFS3 datastore, ~2TB on a 3.6TB LUN
Posted in Computing, Storage, Virtualization, VMware Tagged #vstorage, ESXi, storage, vSphere, vSphere5 Leave a comment
VMDK growth patterns (VMFS3 / 5)
I got curious about block sizes and how thin provisioned .vmdks and snapshot .vmdks grow, especially now that VMFS5 uses a 1MB “unified” block size. I came up with the following table: VMDK File growth patterns VMFS3 ESXi 4.1………Thin Provision…..Snapshots … Continue reading
