Total reset TS-431 through SSH

[ikifikif]

Hi.
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/

I guess my disk is CACHEDEV1_DATA, but how I remove all partitions in this way ?

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

[dolbyman]

why not just reinit via GUI ?

[ikifikif]

I'm trying to reset my ts-431.
md_checker shows :

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 Disk | Device | # | Status |   Last Update Time   | Events | Array State
===============================================================================
   4  /dev/sdb3  0   Active   Jul  5 01:19:05 2022       20   AA
   2  /dev/sda3  1   Active   Jul  5 01:19:05 2022       20   AA

hal_app --get_boot_pd port_id=0:

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/dev/mtdblock

I undestant that need to eraise sdb and sda , but do I need to do something with mtdblock ? Where this disk located ?

[OneCD]

* moved post *

@ikifikif, please don’t necropost in an old topic.

[ikifikif]

why not just reinit via GUI ?

I have tried reinit in the past, but the problem with a certain external drive remains,and before it be detected correctly. The port itself is working, I checked it with another disk.
I don't exactly know what the reinit do ? Is there other internal memory in TS431 , which keeps some configuration files ?

[FSC830]

Which problem exists with an external drive?
If you follow the advise from the linked Wiki and remove all partitions at a PC, all configuration data is lost. There is a part of OS in NAS remaining, the DOM.
You can do a DOM recovery if you believe that some configurations settings are surviving in DOM.
But if you doing wrong, you can brick your NAS!
If an issue remains even after reinitialization I guess the issue is most likely at the external device.

Regards

[ikifikif]

Which problem exists with an external drive?
If you follow the advise from the linked Wiki and remove all partitions at a PC, all configuration data is lost. There is a part of OS in NAS remaining, the DOM.
You can do a DOM recovery if you believe that some configurations settings are surviving in DOM.
But if you doing wrong, you can brick your NAS!
If an issue remains even after reinitialization I guess the issue is most likely at the external device.

Regards

The NAS stopped to recognize ext. HD (case Sumsung Story USB3 + HD WD red 3T). In past I worked with the disk on the NAS and it worked properly.
I tried this ext. disk on TS-128 - works properly.
Tried other USB3 ext. disk 2.5" on the TS-431 - works properly.