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September 18th, 2023 22:44
Dell S3148 wont boot. "Partitioning 1G onfinand0: bad block encountered!! Addr-0x12700000"
Hi Everyone,
We're on our third failed S3148 switch in the past two weeks. All switches were running firmware 9.14(2.14).
The SNMP and SSH services stop working. Console login does not work as well. This leads us to reboot the switch. Upon reboot the switch encounters a bad block and that's where it stays stuck. Dell technical support has looked at it and there is nothing they can do but to RMA.
Has anyone else come across this? We have a few other S3148 switches on the same firmware and we expect those to go soon as well.
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DELL-Charles R
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October 22nd, 2024 13:56
Hello,
Are you having the exact same error as original poster and are you on S3148 or S3148P?
In either case, the issue has been investigated by Dell engineering and Hardware teams and also by the vendor providing the NAND flash Micron technology. The investigation has concluded that the NAND flash memory has a finite number of program - erase cycles (P/ E cycles)
According to the S3100 series HW spec:
NAND 1GB 8bits
The datasheet, it lists the following spec:
Endurance: 100,000 PROGRAM/ERASE cycles
This limitation can be exceeded quickly by any process that writes/erases frequently to the NAND flash memory device (i.e. DHCP, routing, ARP, etc).
*Attempts to reinstall the switch OS will only restore the switch for short periods, but could be attempted.
At this time, the only remedy available is to contact Support to RMA the device.
It is also recommended to keep backups of the running configurations on existing switches (stored off the switch) before the problem has occurred.
DELL-Joey C
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September 19th, 2023 05:45
Hi,
I'm sorry to hear that you have multiple switch having the same issue.
For the issue (Partitioning 1G onfinand0: bad block encountered!! Addr-0x12700000) on corrupted/not recoverable flash in the switch, it is not related to the switch firmware.
I'm unsure what would be the reason that the switch SNMP and SSH stopped working, but prior to the issue, did you contact the support to check before the reboot? If no, I may suggest contacting the support if you encounter the stopped services.
PortSecurity
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September 19th, 2023 22:06
Hi Joey,
I haven't contacted support yet before a reboot.
I did find this documentation. It appears this was an issue before on older firmware and was fixed on 9.14(1.10.).
Although we are on newer firmware than the fix the issue appears to have come back.
Only solution at the moment is to get an RMA.
https://dl.dell.com/manuals/all-products/esuprt_networking_int/esuprt_networking_operating_systems/dell-emc-os-9_release-notes27_en-us.pdf
Thanks.
sysland
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October 22nd, 2024 12:18
Hi,
I had about 8 RMAs for the same error, 2 this morning. OS version is 9.14(2.23).
We are desperate to find a solution, I cannot put those new switches in production out of fear they will crash.