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Perinnially reserved setting
Hello Experts, Actually, would like to understand is there any relation ship between the perinnialy reserved setting and the MSCS cluster node loosing disk and generating the following events :...
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What is the exact way VMware ESXi works with storage?
I'm trying to figure out how exactly ESXi storage subsystem works. I'll give you an example. The first peak [1] is the result of: vmkfstools -i /vmfs/volumes/RAID0-1/333/333.vmdk...
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Disk I/O on a VM template
Does it make sense that SAN HQ is showing disk I/O for a VM template? It's only 1.03 total IOPS, but I didn't expect any from a template. I verified that it is indeed a template and not a VM with a...
View ArticleNeed help about SSD PCIe
Hi all,I want to setup Server with 4 SSD PCIe ( Software - RAID 10 ) for VMWare vSphere Server.But my friend say " There is no way to software RAID from within ESXi."I don't understand about Storage...
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Running UNMAP from separate host
I have a Dell Compellent array I am looking to reclaim space on using the UNMAP cli. The ESX cluster attached to this array is fairly utilized at about 68% memory. I would like to run the UNMAP from a...
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Having Issue with VM storage Policies
I Just made a new installation of vmware 6.5.(hypervisor and vcenter) I am getting an error when creating a VM ,in the storage selection, in VM storage policy, it doesn't show me if it's Thin or...
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'Data Integrity Test -> LUNReset' VMware Storage Certification Guide
Hello,I have installed VMware Workbench 3.5.5.3795915. Prepared testbed (installed vsphere and two esxi(A and esxiB) and on each set up 4 vms( 2 linux, 2 windows accordingly).During the tests i got...
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OCZ RevoDrive X2 PCI-Express SSD - will it work with ESXi?
Hello, does someone know if OCZ RevoDrive X2 PCI-Express SSD will work with VMware ESXi? URL:http://www.ocztechnology.com/ocz-revodrive-x2-pci-express-ssd.html Thank you
View ArticleDeleted 2 oldest vmdk files
Deleted 2 vmdk files from 2013 from a datastore thinking they were artifacts. But apparently not. I still have 2 large files remaining. I need to either recover those files somehow or attempt to...
View ArticleSearching for QFull and Queue Depth
Hi,In discussions over tackling "Lost access to volume" messages and "Performance deteriorated" messages, we're trying to find the cause of these. One thing we're looking at is to change the queue...
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path selection
on vcenter 6.0 i cant see policy selection . why we cant see path selection rr or mru policy on vcenter ? we use vmware emc vaai we take this report with rvtools also on vcenter we cant see any path...
View ArticleThin provisioned custom alarm trigger
Hi, I am trying to understand when "Thin-provisioned volume capacity threshold exceeded" custom alarm in Vcenter 6.x would get triggered.I have a datastore backed by iSCSI based LUN and the storage...
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Error creating VVOL container on ESXi 6.0 U2
I'm trying to set up VVOL on a new Compellent system running SCOS 7.1 with Dell M630 blades with QLogic NetXtreme II (aka QLogic 57840) adapters and when I create the container, the Create Virtual...
View ArticleVMware ESXi 5.5 U1 configuration with QNAP TS-870 using iSCSI
I am trying to configure my VMware ESXi 5.5 U1 host to have a datastore on my QNAP TS-870 using iSCSI.Following the configuration everything is functional and I can access the new datastore to upload...
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Add existing datastore in existing datastore cluster
Hello, I want to know, if I add existing datastore in existing datastore cluster, the datastore will be formatted ? No problem with compatibility ? The VM hosting on the datastore will not crash ? Thanks,
View Articlestorage drs
ı have emc storage and using VNX FAST VP , FAST Cache . Also 3par so using tiering. now i want to learn that can i use storage drs on my vcenter 6 with them ?
View ArticlePhysical RDMs pointer files
I have 2 SANs, let’s call these SAN1 and SAN2.SAN1 is being de-comissioned. I have several physical RDM disks on SAN2 but their pointer files are on a 'quorum' disk that is on SAN1. The actual...
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SQL DB and vFRC performance tweaking
Good day all, I am working on performance tweaking for a database server. I enabled 40GB @ 8K block of vFlash Read Cache. Below is what I am seeing as a result after a few days of usage. The data is...
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Deduped iSCSI VMFS volume not reflecting in vSphere 6 as expected
We have a Compellent SC4020 with the new SCOS 7 on it with dedupe available but i'm confused at what's being reported. It almost seems as if it's not showing properly in vSphere (6.0 U2), although this...
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Recommended Flash Read Cache disk controller configuration for SSDs
Should the Flash Read Cache disk controller be configured as Raid or HBA "bypass the controller cache memory"?
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