I have TS-431 (current ver. 4.3.6.1750 , latest ver. for the NAS is 4.3.6.2050) for many years and it is pretty weak hardware for 2022. I use 2 x HD WD red pro 6T in RAID1 and 1 WD red 3T.
Over time, a few problems have accumulated: freezes, not recognized some external drives (which razoboznavali before).
I want to do a complete system wipe so that there is no any file/configuration left from the current system.
I found a way to reset through SSH there https://wiki.qnap.com/wiki/Complete_Reinitialization :
"So login to your QNAP with ssh and type in mount on the list find the device binded with /share/HDA_DATA (for single disk configuration) or /share/MD0_DATA (for raid configurations). Launch fdisk with the disk as a parameter and remove all partitions.
There is also another more brutal way to destroy the partition table on the disk: dd if=/dev/urandom of=<name of your HDD device> bs=1024k count=1."
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[/] # ls -r /share/
homes@ Web@ Multimedia@ Download@ BackUPs@
i18n/ external/ Public@ Main@ CACHEDEV1_DATA/
Maybe the 2nd way , but I see too much devices, Do I need destroy the each one ? :
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/dev/sda1: UUID
/dev/sda2: UUID
/dev/sda3: UUID
/dev/sda4: UUID
/dev/sda5: UUID
/dev/sdb1: UUID
/dev/sdb2: UUID
/dev/sdb3: UUID
/dev/sdb4: UUID
/dev/sdb5: UUID
/dev/md9: UUID
/dev/md13: UUID
/dev/md256: UUI
/dev/md322: UUI
/dev/md1: UUID
/dev/mapper/vg288-lv1: LABEL
/dev/mapper/cachedev1: LABEL