I've had two situations now come up that look to be SSD related. Curious if anyone has ever heard of this issue before.
Two almost identical Windows 8.1 Pro VMs, one on an SSD (Samsung 840 Pro 256GB), the other on a plain old WD 750GB hard drive.
Certain applications will have problems writing small files to the SSD. Two cases so far, one with iTunes, cannot update the library file, creates a .tmp file every time you manipulate the playlists or close iTunes. It won't close, and hangs on "saving library" or similar message. Windows explorer then hangs when trying to delete the TMP file (after iTunes has closed.) Moving the entire library / iTunes folder to a plain hard drive that is on a passed-thru controller works fine. No issue whatsoever. Only with the SSD. No problems with the Windows 8.1 VM on the plain HD.
And now, Acronis 2015 will not install. Months later, same issue. It hangs during install. If you browse to the last set of files it is manipulating during install (in this case, the start menu entries), you find a couple of TMP files with incomplete names, appearing to have hung trying to create them. Cancelling the install, and doing anything with the TMP files (right clicking, or attempting to delete) results in windows explorer hanging badly, forcing a reboot of the system to bail out of the condition. The Windows 8.1 VM on the plain drive? No issue installing whatsoever.
Both situations appear to be an issue with access to the "C:" drive which would be the VM's virtual disk on the SSD datastore. Write latency or some kind of write caching?
EDIT to add: ESXi 5.5 update 2, hardware version 8 VMs
Two almost identical Windows 8.1 Pro VMs, one on an SSD (Samsung 840 Pro 256GB), the other on a plain old WD 750GB hard drive.
Certain applications will have problems writing small files to the SSD. Two cases so far, one with iTunes, cannot update the library file, creates a .tmp file every time you manipulate the playlists or close iTunes. It won't close, and hangs on "saving library" or similar message. Windows explorer then hangs when trying to delete the TMP file (after iTunes has closed.) Moving the entire library / iTunes folder to a plain hard drive that is on a passed-thru controller works fine. No issue whatsoever. Only with the SSD. No problems with the Windows 8.1 VM on the plain HD.
And now, Acronis 2015 will not install. Months later, same issue. It hangs during install. If you browse to the last set of files it is manipulating during install (in this case, the start menu entries), you find a couple of TMP files with incomplete names, appearing to have hung trying to create them. Cancelling the install, and doing anything with the TMP files (right clicking, or attempting to delete) results in windows explorer hanging badly, forcing a reboot of the system to bail out of the condition. The Windows 8.1 VM on the plain drive? No issue installing whatsoever.
Both situations appear to be an issue with access to the "C:" drive which would be the VM's virtual disk on the SSD datastore. Write latency or some kind of write caching?
EDIT to add: ESXi 5.5 update 2, hardware version 8 VMs
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