Tag Archives: ESXi

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 , , , , , | 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

Posted in Cloud, Computing, Storage, Virtualization, VMware | Tagged , , , | 1 Comment

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 , , , , | 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

Posted in Computing, Storage, Virtualization, VMware | Tagged , , , , , , | 5 Comments

vSphere5 – Storage – import a 4TB LUN

With vSphere5 you can format 64TB LUNs with VMFS5, but you are still limited to 2TB VMDK files. [note that a new VMFS5 datastore has a 1MB block size and 2TB VMDK max, breaking away from the old 1/2/4/8 = … Continue reading

Posted in Cloud, Computing, Storage, Virtualization, VMware | Tagged , , , , , | Leave a comment

vCenter Storage Status “unknown”

I’ve seen a few cases where storage devices (specifically iSCSI or FCP datastores) return a gray “unknown” for a status:

Posted in Cloud, Computing, Storage, Virtualization, VMware | Tagged , , , , , | Leave a comment

Enabling vMotion and converting a portgroup to a VMKernel port

I was asked a question the other day about “enabling vMotion.” The answer actually has 2-parts. Technically there is a parameter you need to have set in order for vMotion to be enabled on your host. “Migrate.Enabled” is an advanced … Continue reading

Posted in Cloud, Computing, Virtualization, VMware | Tagged , , , , | Leave a comment

vSphere 5 Rumors and books

Update:vSphere 5 is released VMware and Pearson have launched a new to publish “official” VMware books Most notably: Storage Design and Implementation in VMware vSphere 5.x by Mostafa Khalil • Technology Deep Dive • Fall 2011 Automating Day-to-Day Administration of … Continue reading

Posted in Cloud, Computing, Disaster Recovery, Virtualization, VMware | Tagged , , , | Leave a comment

My snapshots are where?

Update: Per the VMware Storage Blog this behavior has changed for 5. In vSphere 5.0, the workingDir parameter still exists, but it will no longer be used as a pointer to a location for storing snapshot delta disks. The workingDir … Continue reading

Posted in Cloud, Virtualization, VMware | Tagged , , , , | 1 Comment

VMware vSphere 4.1 training

For vSphere 4.0 VMware had a “Install, Configure, Manage” or ICM class that lasted four 8-hour days. You could also opt for a 5-day “FastTrack” class that took the ICM and added components from the “Performance” and “Troubleshooting” classes and … Continue reading

Posted in Computing, Scripting, Security, Virtualization, VMware | Tagged , , , , , , , , | Leave a comment