Gentoo Archives: gentoo-user

From: Michael <confabulate@××××××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] routine maintenance.
Date: Thu, 18 Feb 2021 13:12:30
Message-Id: 2133440.iZASKD2KPV@lenovo.localdomain
In Reply to: [gentoo-user] routine maintenance. by Alan Grimes
1 On Thursday, 18 February 2021 06:54:29 GMT Alan Grimes wrote:
2
3 > The other discovery was that my /home drive is a 3.0 tb Toshiba unit
4 > from 2014... man time flies!!! =P This means that the thing should
5 > probably be replaced due to being old as hell...
6
7 I've got disks spinning around for more than 10 years before yours had
8 started. One has been showing similar errors for almost half its life.
9
10
11 > I'm not going to get too excited about 24 reallocated sectors on a drive
12 > this large... Actually I have a drive in my NAS that's going down hill
13 > rapidly, I think the power supply to the slot its in is weaker than the
14 > others and well...
15 >
16 > Any thoughts about running a drive this old, and what I should be
17 > looking at as a replacement?
18
19 I can't advise on a replacement, other than say check if any candidate uses
20 Shingled Magnetic Recording (SMR) technology and avoid it unless your use case
21 involves writing rarely, reading often. Conventional drives use Perpendicular
22 Magnetic Recording and will not suffer from the performance degradation of
23 SMRs when written to frequently and extensively.
24
25
26 > Root is a 256gb SATA Samsung SSD, no concerns about lifespan on that
27 > drive. I hadn't heard of M.2 yet when I bought it...
28
29 You'll be able to replace your spinning SATA with an SSD SATA using AHCI over
30 the same port. You won't be able to get an M.2 NVMe (M-key socket 3) doing
31 its magic without a PCIe 3.0x4 port on your MoBo.
32
33 Sadly my hardware is too old and it won't boot using NVMe.
34
35
36 > /dev/sdb1 2884152536 955486476 1782136424 35% /home
37 >
38 > SMART Attributes Data Structure revision number: 16
39 > Vendor Specific SMART Attributes with Thresholds:
40 > ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE
41 > UPDATED WHEN_FAILED RAW_VALUE
42 > 1 Raw_Read_Error_Rate 0x000b 083 083 016 Pre-fail
43 > Always - 262570
44 > 2 Throughput_Performance 0x0005 139 139 054 Pre-fail
45 > Offline - 72
46 > 3 Spin_Up_Time 0x0007 159 159 024 Pre-fail
47 > Always - 405 (Average 316)
48 > 4 Start_Stop_Count 0x0012 100 100 000 Old_age
49 > Always - 244
50 > 5 Reallocated_Sector_Ct 0x0033 100 100 005 Pre-fail
51 > Always - 24
52 > 7 Seek_Error_Rate 0x000b 100 100 067 Pre-fail
53 > Always - 0
54 > 8 Seek_Time_Performance 0x0005 119 119 020 Pre-fail
55 > Offline - 35
56 > 9 Power_On_Hours 0x0012 093 093 000 Old_age
57 > Always - 53677
58 > 10 Spin_Retry_Count 0x0013 100 100 060 Pre-fail
59 > Always - 0
60 > 12 Power_Cycle_Count 0x0032 100 100 000 Old_age
61 > Always - 243
62 > 192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age
63 > Always - 271
64 > 193 Load_Cycle_Count 0x0012 100 100 000 Old_age
65 > Always - 271
66 > 194 Temperature_Celsius 0x0002 181 181 000 Old_age
67 > Always - 33 (Min/Max 14/44)
68 > 196 Reallocated_Event_Count 0x0032 100 100 000 Old_age
69 > Always - 27
70 > 197 Current_Pending_Sector 0x0022 029 029 000 Old_age
71 > Always - 1456
72
73 This value is worth considering further. Start with a backup of your data,
74 but do not overwrite your older backups.
75
76 Then consider zeroing the defective sectors.
77
78 https://www.thomas-krenn.com/en/wiki/
79 Analyzing_a_Faulty_Hard_Disk_using_Smartctl
80
81 With 1456 pending sectors you'll be there for a while. Alternatively ditch it
82 and get a new drive as you intend to do anyway.

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Re: [gentoo-user] routine maintenance. John Covici <covici@××××××××××.com>