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Qnap ISCSI Problems & How to Fix

Qnap ISCSI Problems & How to Fix

ISCSI Becomes Unreachable

  1. Diretly Plug Qnap ethenrnet cable to your Laptop / Pc
  2. Download Qnapfinder and check if Qnapfinder could find Qnap on network. Try to login Qnap.
  3. At Admin page, go Disk Managment -> ISCSI and check if “Enable ISCSI Target Service” option is Enable under Portal managment.

I have a great screenshot that shows possable ISCSI errors. Check your ISCSI status and try to fix solutions down below;

At 1.st example named “Test”, see that left “plus” seems grey, and it means you have target but no Lun. You may accidently delete lun, so login with winscp and check if your luns are under .@iscsi.img folder or not. if they exist, try my iscsi lun recovery document to fix the problem, or request help from Qnap support Taiwan.

At 2.th example named backup, ISCSI target seems stopped and just start it back by pressing blue icon. if if doesnt work, login with winscp and check if your luns are under .@iscsi.img folder or not. if they exist, try my iscsi lun recovery document to fix the problem, or request help from Qnap support Taiwan.

At 3.th example named 859ftp, ISCSI lun gives error, because its not there anymore, so connect with winscp and check if its still under .@iscsi.img or not. check my “iscsi lund doesnt exist under “.@iscsi.img”  document.

At 4.th example named 200gb, everything seems perfect on Qnap. Try to Restart Qnap and reconnect via ISCSI initiator on windows if problem fixed or not. If problem still exist, check your RAID system if its allright. Sometimes you must fix your RAID from “in degreed mode” to reach your ISCSI back. If problem exist, check my ISCSI lun recovery document or request help from Qnap Taiwan.

 

ISCSI Lun Becomes as RAW / Unallocated File system

ISCSI Lun Becomes as RAW / Unallocated File system An IT manager in Turkey request help from me about his ISCSI on Qnap seems as RAW / Unallocated file system and he couldnt reach his datas. When I asked him why this error may accure, he said he tried to use his ISCSI on windows …

ISCSI Lun Recovery

ISCSI Lun Recovery I – When Do we Need Lun Recovery? As you all know, When you loose 3 HDD from RAID 6 , you loose all of your datas, but Qnap has and advance Read-Only Feature that enables to backup your datas. But, for ISCSI, it doesnt work. With this document, I’ll show you …

ISCSI Luns are not exist under .@iscsi folder

ISCSI Luns are not exist under .@iscsi folder This only happened once and one of our costumer loose 11 Tb  of ISCSI lun. Worse part is, lun parts are not exist under .@iscsi foldern on the device. I contact with Qnap Taiwan and request help, but they said there is nothing we can do, because …

Qnap ISCSI Lun Lost and How to Restore

Qnap ISCSI Lun Lost and How to Restore ISCSI Luns Disappeared! I – Recover ISCSI with official Qnap Way with linux commands; Here you can Download Offical Qnap Lun Recovery Document form this link; iSCSI_LUN_Recovery II – Recover ISCSI with my Way with windows interface Also, I think Qnap offical Document is a little bir …