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Groups > linux.debian.user > #221883
| From | David Christensen <dpchrist@holgerdanske.com> |
|---|---|
| Newsgroups | linux.debian.user |
| Subject | Re: |
| Date | 2020-04-24 00:10 +0200 |
| Message-ID | <zYScF-7G0-1@gated-at.bofh.it> (permalink) |
| References | <zYuDn-1Kq-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 2020-04-22 13:52, Default User wrote: > Hey, > > A recent thread got me to thinking. So I checked my primary (only > installed) ssd: > > sudo smartctl --test=long /dev/sda > > which promised to run the tests, but returned to a command prompt, > with no further messages. > So after the promised test end time I did: > > sudo smartctl --all /dev/sda > > which gave this: > SMART overall-health self-assessment test result: PASSED I pay attention to this item. > General SMART Values: > Offline data collection status: (0x02) Offline data collection activity > was completed without error. > Self-test execution status: ( 0) The previous self-test routine completed > without error or no self-test has ever > been run. I pay attention to these items. > SMART Attributes Data Structure revision number: 10 > Vendor Specific SMART Attributes with Thresholds: > ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE > UPDATED WHEN_FAILED RAW_VALUE > 1 Raw_Read_Error_Rate 0x0032 095 095 050 Old_age > Always - 0/5466601 > 5 Retired_Block_Count 0x0033 100 100 003 Pre-fail > Always - 0 > 9 Power_On_Hours_and_Msec 0x0032 091 091 000 Old_age > Always - 8197h+53m+29.020s I ignore the "old age" and "pre-fail" notations. > SMART Self-test log structure revision number 1 > Num Test_Description Status Remaining > LifeTime(hours) LBA_of_first_error > # 1 Extended offline Completed without error 00% 8197 - > # 2 Short offline Completed without error 00% 8196 - > # 3 Short offline Completed without error 00% 7883 - > # 4 Short offline Completed without error 00% 7883 - > # 5 Short offline Completed without error 00% 7883 - > # 6 Extended offline Completed without error 00% 7003 - > # 7 Extended offline Completed without error 00% 7002 - > # 8 Short offline Completed without error 00% 6999 - I pay attention to these items. > Since, I recall, that ssd drives do tend to fail quickly and without > notice, is it time to get a new drive and reinstall from scratch? I have seen lots of HDD failures and a few USB flash drive failures, but no SSD failures (yet). The USB flash drive failures do tend towards all-or-nothing or all-or-very-slow, sometimes accompanied with the smell of roasting electronics. > If so, recommendations? I prefer Intel and Samsung, but any major brand should do. > I think I want to continue to use an ssd, because even though it can > fail without warning, this would be in a laptop, and I want to avoid > shock damage to a mechanical drive at all costs. The only HDD's I buy are large capacity 3.5" SATA enterprise HDD's for storage and backups. > I an currently running Debian Unstable, on a 5-year-old laptop (Dell > Inspiron 3000 series, 8Gb ram, Intel i3 processor, traditional BIOS > booting). It has space for only one, 2.5-inch drive. > > lsblk: > NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT > sda 8:0 0 111.8G 0 disk > ├─sda1 8:1 0 28G 0 part / > ├─sda2 8:2 0 1K 0 part > ├─sda5 8:5 0 7.9G 0 part [SWAP] > └─sda6 8:6 0 76G 0 part /home > sr0 11:0 1 1024M 0 rom > > The 120Gb ssd is "adequate"; root partition is 38% full, and home > partition is 45% full. > Swap partition is rarely if ever used; not sure i it is really necessary. A ~10.6 GB root is in the ballpark for a Debian graphical workstation. I put my bulk data on a Samba server. I tried running without swap -- those systems crashed. Now I do 1-2 GB. > User case is conventional, nothing taxing. No video editing, gaming, etc. > > And yes, I do back up, home partition only, using rsync to an external > usb drive: > > sudo rsync -avvzHAXPish --delete /home/default > /media/default/USBHD005/Backup_of_home_directory_of_Dell_Debian_dimwit You should get two more -- keep one on-site, keep one near-site, keep one off-site, and rotate them periodically (weekly, bi-monthly, etc.). > I suppose I could [learn to] do a full system backup and restore to a > new drive, if I had to. I have never done an old-school dump(8)/ restore(8). I keep my system images small enough to fit on "16 GB" devices. I take and restore images with dd(1), which is available in the Debian installer rescue shell (but preferably with a USB live drive and a Perl script I wrote). As other readers have mentioned, Clonezilla is an option. > And if I do need to try to copy my current install to a new drive > (instead of a fresh install), what is the EASIEST way to do that? Building up a blank disk into a working system drive requires many tedious steps -- you have to move the partition table(s), bootloader, all partitions, and the contents of those partitions (e.g. swap, filesystems, whatever). Things get harder if you add encryption, LVM, or non-standard filesystems like ZFS. The installer takes care of many of those details for you. I believe Clonezilla also does so. A raw binary copy with dd(1) bypasses all of those messy details except for relocating the backup GPT partition table if the device size has changed. That is one reason why I still use MBR. David
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(none) Default User <hunguponcontent@gmail.com> - 2020-04-22 23:00 +0200
Re: David <bouncingcats@gmail.com> - 2020-04-23 12:00 +0200
Re: "Alexander V. Makartsev" <avbetev@gmail.com> - 2020-04-23 16:30 +0200
Re: David Christensen <dpchrist@holgerdanske.com> - 2020-04-24 00:10 +0200
Re: Default User <hunguponcontent@gmail.com> - 2020-04-24 03:00 +0200
Re: David Christensen <dpchrist@holgerdanske.com> - 2020-04-24 11:00 +0200
Backup ideas Andy Smith <andy@strugglers.net> - 2020-04-24 17:40 +0200
Re: Backup ideas Celejar <celejar@gmail.com> - 2020-04-24 18:30 +0200
Re: Backup ideas Default User <hunguponcontent@gmail.com> - 2020-04-28 17:50 +0200
Re: Backup ideas Andrei POPESCU <andreimpopescu@gmail.com> - 2020-04-28 18:20 +0200
Re: Backup ideas Default User <hunguponcontent@gmail.com> - 2020-04-28 20:30 +0200
Re: Backup ideas Default User <hunguponcontent@gmail.com> - 2020-04-28 21:20 +0200
Re: Backup ideas David Christensen <dpchrist@holgerdanske.com> - 2020-04-28 22:30 +0200
Re: Backup ideas Bob Weber <bobrweber@gmail.com> - 2020-04-28 22:50 +0200
Re: Backup ideas Bob Weber <bobrweber@gmail.com> - 2020-04-28 20:20 +0200
Re: Backup ideas Andy Smith <andy@strugglers.net> - 2020-04-28 22:40 +0200
Re: Backup ideas Celejar <celejar@gmail.com> - 2020-04-29 06:40 +0200
Re: Backup ideas Celejar <celejar@gmail.com> - 2020-04-29 06:30 +0200
Re: Backup ideas Alessandro Baggi <alessandro.baggi@gmail.com> - 2020-05-01 12:40 +0200
Re: Backup ideas Default User <hunguponcontent@gmail.com> - 2020-05-04 03:30 +0200
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