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Quick stats for the VSAN HCL

06.13.2014 by William Lam // 3 Comments

I noticed there was a new blog post this morning from Wade Holmes on an update to the VSAN HCL and I thought it might be useful to provide some quick stats on all the partners who have supported components listed on the VSAN HCL such as the storage controllers, SSDs and MDs. As of today (06/13/14), the information below is the latest from the VSAN HCL. I will make adjustments to the Google doc as updates are made to the VSAN HCL.

Disclaimer: The VMware VSAN HCL should still be used as the official source when selecting components for your VSAN environment.

Total VSAN Storage Controllers: 89
GDoc for All VSAN Controllers - https://docs.google.com/spreadsheets/d/1FHnGAHdQdCbmNJMyze-bmpTZ3cMjKrwLtda1Ry32bAQ

Vendor Controllers
Cisco 2
Dell 5
Fujitsu 11
HP 7
IBM 6
Intel 18
LSI 37
SuperMicro 3

Note: If you would like to help contribute to the "Community" VSAN storage controller queue depth list, please take a look at this article for more details.

Total VSAN SSDs: 110
GDoc for All VSAN SSDs - https://docs.google.com/spreadsheets/d/1FHnGAHdQdCbmNJMyze-bmpTZ3cMjKrwLtda1Ry32bAQ/edit#gid=858526558

Vendor SSDs
Cisco 5
Dell 15
EMC 5
Fujitsu 4
Fusion-IO 15
Hitachi 9
HP 15
IBM 9
Intel 12
Micron 7
Samsung 3
SanDisk 6
Virident Systems 5

Total VSAN MDs: 97
GDoc for All VSAN MDs - https://docs.google.com/spreadsheets/d/1FHnGAHdQdCbmNJMyze-bmpTZ3cMjKrwLtda1Ry32bAQ/edit#gid=1993745998 

Vendor MDs
Cisco 8
Dell 20
Fujitsu 13
Hitachi 1
HP 19
IBM 20
Lenovo 3
Seagate 13

Categories // VSAN, vSphere 5.5 Tags // ESXi 5.5, hdd, md, ssd, storage controller, VSAN, vSphere 5.5

Quick Tip - Marking an HDD as SSD or SSD as HDD in ESXi

08.15.2013 by William Lam // 9 Comments

This was a neat little trick that I picked up in one of our internal storage email distribution groups which I thought was quite interesting. Some of you may recall an article I wrote a few years back on how to trick ESXi 5 in seeing an SSD device which relied on adding an SATP rule for a particular storage device. The actual use case for this feature was that not all real SSD devices would automatically be detected by ESXi and this allowed a user to manually mark it as an SSD.

The other "non-official" use case for this feature allows a user to basically "simulate" an SSD by marking a regular HDD as an SSD and I this actually helped me test the new Host Cache (Swap-to-SSD) feature which was part of the vSphere 5 release. Recently there was a customer inquiry asking for the complete reverse, in which you could mark an SSD as an HDD. I am not sure what the use case was behind this request but I did learn it was actually possible using a similar method of adding a SATP rule to a device.

Note: If you are running Nested ESXi, a much simpler solution for simulating an SSD is to use the following trick noted here.

Before you begin, you will need to identify the storage device in which you wish to mark as an SSD or HDD. Use the following ESXCLI command to do so:

esxcli storage core device list

In the screenshot above, we can see for our device mpx.vmhba1.C0:T2:L0 shows "Is SSD" parameter as false. After running two commands below, we should then see that property change to true.

Marking HDD as SSD:

esxcli storage nmp satp rule add -s VMW_SATP_LOCAL -d mpx.vmhba1:C0:T2:L0 -o enable_ssd
esxcli storage core claiming reclaim -d mpx.vmhba1:C0:T2:L0

 

Marking SSD as HDD:

esxcli storage nmp satp rule add -s VMW_SATP_LOCAL -d mpx.vmhba1:C0:T1:L0 -o disable_ssd
esxcli storage core claiming reclaim -d mpx.vmhba1:C0:T1:L0

To perform the opposite, you simply just need to add the disable_ssd option. If you receive an error regarding a duplicate rule, you will need to first remove the SATP rule and then re-create with the appropriate option.

Another useful tidbit is that if you are running Nested Virtualization and the virtual disk of that VM is stored on an actual SSD, that virtual disk will automatically show up within the guestOS as an SSD so no additional changes are required.

Categories // Automation, ESXi, VSAN Tags // enable_ssd disable_ssd, esxcli, ESXi, hdd, ssd

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William is Distinguished Platform Engineering Architect in the VMware Cloud Foundation (VCF) Division at Broadcom. His primary focus is helping customers and partners build, run and operate a modern Private Cloud using the VMware Cloud Foundation (VCF) platform.

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