[SOLVED] Boot-SSD ZFS-Raid1 Wearout already 1% after 5 days?

M

Machtl

Member
Proxmox Subscriber
Jan 9, 2021
29
11
8
46
Hi,

i recently built a new Proxmox Server that i am about to ship to the Datacenter. In the past i just used one boot drive with ext4 and thats it.
This time i am using 2x SATA SSDs Samsung PM893 Datacenter 480GB in a ZFS Raid1 Mirror with /dev/sda & /dev/sdc. The specs for the PM893 are TBW 876TB.

There are no VMs running of that storage, no backups, nothing. Just for boot drives and the system.

Today i noticed that the wear out level is already shown with 1% !!??

Whats going on here?

Can someone help me to check if this is normal or if something is terribly wrong?

Here is the current state of one of the discs:
Code: 
smartctl --all /dev/sda
smartctl 7.2 2020-12-30 r5155 [x86_64-linux-5.15.74-1-pve] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Device Model:     SAMSUNG MZ7L3480HCHQ-00A07
LU WWN Device Id: 5 002538 f0282a445
Firmware Version: JXTC304Q
User Capacity:    480,103,981,056 bytes [480 GB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    Solid State Device
Form Factor:      2.5 inches
TRIM Command:     Available, deterministic, zeroed
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   ACS-4 T13/BSR INCITS 529 revision 5
SATA Version is:  SATA 3.2, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Wed Jan 11 19:54:17 2023 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x00) Offline data collection activity
                                        was never started.
                                        Auto Offline Data Collection: Disabled.
Self-test execution status:      (   0) The previous self-test routine completed
                                        without error or no self-test has ever
                                        been run.
Total time to complete Offline
data collection:                (    0) seconds.
Offline data collection
capabilities:                    (0x53) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        No Offline surface scan supported.
                                        Self-test supported.
                                        No Conveyance Self-test supported.
                                        Selective Self-test supported.
SMART capabilities:            (0x0003) Saves SMART data before entering
                                        power-saving mode.
                                        Supports SMART auto save timer.
Error logging capability:        (0x01) Error logging supported.
                                        General Purpose Logging supported.
Short self-test routine
recommended polling time:        (   2) minutes.
Extended self-test routine
recommended polling time:        (  35) minutes.
SCT capabilities:              (0x003d) SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

SMART Attributes Data Structure revision number: 1
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  9 Power_On_Hours          0x0032   099   099   000    Old_age   Always       -       150
 12 Power_Cycle_Count       0x0032   099   099   000    Old_age   Always       -       19
177 Wear_Leveling_Count     0x0013   099   099   005    Pre-fail  Always       -       1
179 Used_Rsvd_Blk_Cnt_Tot   0x0013   100   100   010    Pre-fail  Always       -       0
180 Unused_Rsvd_Blk_Cnt_Tot 0x0013   100   100   010    Pre-fail  Always       -       445
181 Program_Fail_Cnt_Total  0x0032   100   100   010    Old_age   Always       -       0
182 Erase_Fail_Count_Total  0x0032   100   100   010    Old_age   Always       -       0
183 Runtime_Bad_Block       0x0013   100   100   010    Pre-fail  Always       -       0
184 End-to-End_Error        0x0033   100   100   097    Pre-fail  Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0032   072   062   000    Old_age   Always       -       28
194 Temperature_Celsius     0x0022   072   060   000    Old_age   Always       -       28 (Min/Max 23/40)
195 Hardware_ECC_Recovered  0x001a   200   200   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0032   100   100   000    Old_age   Always       -       0
199 UDMA_CRC_Error_Count    0x003e   100   100   000    Old_age   Always       -       0
202 Unknown_SSD_Attribute   0x0033   100   100   010    Pre-fail  Always       -       0
235 Unknown_Attribute       0x0012   099   099   000    Old_age   Always       -       9
241 Total_LBAs_Written      0x0032   099   099   000    Old_age   Always       -       215023089
242 Total_LBAs_Read         0x0032   099   099   000    Old_age   Always       -       31388177
243 Unknown_Attribute       0x0032   100   100   000    Old_age   Always       -       0
244 Unknown_Attribute       0x0032   100   100   000    Old_age   Always       -       0
245 Unknown_Attribute       0x0032   100   100   000    Old_age   Always       -       65535
246 Unknown_Attribute       0x0032   100   100   000    Old_age   Always       -       65535
247 Unknown_Attribute       0x0032   100   100   000    Old_age   Always       -       65535
251 Unknown_Attribute       0x0032   100   100   000    Old_age   Always       -       225454848

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed without error       00%         1         -

SMART Selective self-test log data structure revision number 1
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
  256        0    65535  Read_scanning was never started
Selective self-test flags (0x0):
  After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.


zpool status
  pool: rpool
 state: ONLINE
  scan: scrub repaired 0B in 00:00:03 with 0 errors on Sun Jan  8 00:24:04 2023
config:

        NAME                                                     STATE     READ WRITE CKSUM
        rpool                                                    ONLINE       0     0     0
          mirror-0                                               ONLINE       0     0     0
            ata-SAMSUNG_MZ7L3480HCHQ-00A07_S664NA0T80xxxx-part3  ONLINE       0     0     0
            ata-SAMSUNG_MZ7L3480HCHQ-00A07_S664NA0T80xxxx-part3  ONLINE       0     0     0

errors: No known data errors

I have Intel SSDs in my other Proxmox Servers that are now running for over 2 years and still showing 0% wear out level ?

Best regards,
Martin
 
Last edited:
I am a noob, can you show/expand on where this:
'''
wear out level is already shown with 1%
'''
information is displayed.

Thx!
 
It's normal for samsung, they will start and stay long time on 1%. I would worry and calculate only if they climb to 2% in short time.
 
  • Like
Reactions: pos-sudo
mr44er said:
It's normal for samsung, they will start and stay long time on 1%. I would worry and calculate only if they climb to 2% in short time.
Click to expand...
yea thx @mr44er , it looks like that samsung ssds are pretty fast skipping the 0% threshold and showing 1%. i rechecked today and the data written on the zfs boot mirror was 103 GB with the 150hours shown above, and now 134GB with 214hours. so thats a rate of ~ 12GB per day. with the given TBW of 876TB on those drives this would last for over 200years. i think i am good. :D

will mark it as solved. but i still wonder about 12GB per day.
 
Last edited:
deepmox said:
I am a noob, can you show/expand on where this:
'''
wear out level is already shown with 1%
'''
information is displayed.

Thx!
Click to expand...
You can check in in the Wear_leveling_count value as a percentage or raw value with smartctl,but PVE will also show it in the 'Disks' tab when you click on your PVE in the WebGUI.
 
  • Like
Reactions: deepmox
mr44er said:
It's normal for samsung, they will start and stay long time on 1%. I would worry and calculate only if they climb to 2% in short time.
Click to expand...

I found this thread, and can confirm that we have the PM893's 1.92TB variant in ZFS RAID 1 has pretty fast a wear-out percentage of 1%. Hopefully you're right ;)
 
You must log in or register to reply here.

About

The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Quick Navigation

Home Get Subscription Wiki Downloads Proxmox Customer Portal About

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!
Community platform by XenForo® © 2010-2024 XenForo Ltd.
Top Bottom