Romex Software Forum

Hello,

I am using Ram Drive to to house tempDB for a MS SQL database. I have the Ram Drive set up at 320gig. There is also an iSCSI LUN assigned to a drive letter that is 400gig that the config is using to save the memory image.

The issues I am having (and I am hoping someone can help) are:

--- After a reboot I have to go into disk manager and rescan disks for the ram drive to come up.
--- The Real Time Sync is not an option no matter what I choose. I can only choose to to mirror every 15 min rather that the real time which would be desired.

Any advise / guidance would be VERY appriciated.

Thanks!

Hi scalderoni,

These issues are known at
viewtopic.php?f=30&t=1135
(#004, #006)

For issue#004, the reason is that iSCSI disk gets ready a little later than local disks at computer boot-up. The ramdisk have to wait for the image file to be loaded. For SCSI ramdisks, their drive letters are managed by Windows. At bootup, Windows tries to assign an drive letter to the ramdisk, however it finds the ramdisk is not ready (because image file is not ready yet). Later when you rescan disks, Windows finds the ramdisk is ready, so it assign an drive letter to the ramdisk.

At moment, there are two workarounds for this issue: 1) manually rescan disks (or automatically do it by a batch file at computer startup). 2) change ramdisk type to DirectIO instead of SCSI because DirectIO ramdisk's drive letter is managed by the program itself. However I'm not sure that if DirectIO is compatible for your other applications because some applications may not recognize DirectIO ramdisks.

Thanks.