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Snapshots

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Richard
Posts: 2243
Joined: Fri Dec 12, 2008 10:31 am

Re: Snapshots

#21 Post by Richard » Tue May 01, 2018 12:07 am

You need to read this thread:
http://forum.mxlinux.org/viewtopic.php? ... d5#p444438

[Sorry, just realized it was above in this thread. Still good advice.]

mksq_opt=-comp xz -b 262144 -processors 2
for some temperature relief.
It dropped my max temps while snapshotting by about 8 - 10°C.
MX18b1: Lenovo T430: Intel Ivy Bridge i5-3320M, 8GB RAM, 4.9.0-8-amd64, 119 GB SSD
MX18b1: Eee&AA1 NBs: Dual Core Atom N270, 1GB RAM, 4.9.0-8-686, 150 GB HDD
DoubleCmd/Thunar, LibO613, Dropbox, Vivaldi/Firefox, CherryTree, Vbox. LinuxCounter #208633

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Gordon Cooper
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Re: Snapshots

#22 Post by Gordon Cooper » Tue May 01, 2018 1:16 am

Vincent17 wrote:Interesting information! I have a cheap 4-core HP laptop. The first time I ran snapshot, when I saw cpu usage and temperature, I ran the laptop to the garage and placed it on a toaster grate. Technical notes: 1. this method does not work in summer 2. wife must not see or grate will be demoted.
On a toaster grate? For technical tests like this, I would put it under the grate and make use of the heat for a bit of grilling. :happy:

More seriously, have given up any concerns about the temperature. I clean out the dust regularly and the cpu keeps going - has been for 10 years so far. Should outlast me.
Homebrew64 bit Intel duo core 2 GB RAM, 120 GB Kingston SSD, Seagate1TB.
Primary OS : MX-17.1 64bit. Also MX17, Kubuntu14.04 & Puppy 6.3.
Dell9010, MX-17.1, Win7

linwinux

Re: Snapshots

#23 Post by linwinux » Mon May 07, 2018 10:10 am

Hmmmmm, I was getting ready to create a snapshot on an old dual core HP, more specifically an HP 6730b with core duo P8600 2,4 Ghz processors, 4GB RAM, and a 2 GB Swapfile. There are no additional hardware devices installed, and no external displays. It's not a dual-boot setup either, just MX Linux 17.1 all by itself.

Once I start the snapshot process, the laptop can just sit there "as is" without anyone working on it. From what I've been reading here, would it be more sensible not to even bother? What about using Timeshift? I have that installed too. That won't make a snapshot of the entire setup including all of the installed apps though, will it? It would be nice to have a snapshot for that 10 year old setup, but I don't feel like using up a bunch of time during/afterwards just to turn around and fix everything again. :frown:

.

linwinux

Re: Snapshots

#24 Post by linwinux » Mon May 07, 2018 11:15 am

Timeshift appeared to work flawlessly! It took 18 minutes to make a snapshot of the entire system, to include home with around 6 GB in data. The laptop never ran hot and the fan never came on loud enough for me to even be concerned. All total the snapshot contained over 450.000 files with a total disk volume of 9.1 GB size. Sometime this week I'll go ahead and wipe out the OS on that system, followed by re-installing MX 17.1 and using a snapshot after that. I'd try using Timeshift from a live USB boot, but I'm afraid that I'll screw something up if I do that ... :p

technwarnersprings
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Re: Snapshots

#25 Post by technwarnersprings » Fri Jul 06, 2018 9:21 am

Thank you for your response. The laptop is/was the commercial version and I got a steal at $390 (new) on the Amazon website. The seller recognized the error in pricing and it was changed the following day. I see no reason in spending $1K for a business laptop when Linux can run on cheaper hardware.

technwarnersprings
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Re: Snapshots

#26 Post by technwarnersprings » Fri Jul 06, 2018 10:08 am

Yep, Beautiful Warner Springs!

technwarnersprings
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Re: Snapshots

#27 Post by technwarnersprings » Fri Jul 06, 2018 6:41 pm

SOLVED!!! I Purchased a Dell XPS-15 fully loaded. I still have my old one from about 10 years ago and it's still running strong. So I thought, why not go for another one. I have relegated the old XPS-15 to a SAMBA File/Print Server.

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Laurentius
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Re: Snapshots

#28 Post by Laurentius » Fri Nov 30, 2018 9:45 pm

Hello.

I've been trying to make a system snapshot with mx-snapshot. The first two times time i tried, with the default configuration (save some extra exclusions from user's home folder), i saw that cpu was at 100% usage and temperture reached 99°C, and after about 10/15 minutes of this, the tool had only achieved 4% of the task. So i cancelled.

Then I tried with the suggested configuration for low spec hardware

Code: Select all

mksq_opt=-comp lzo -processors 1
Now it was better. Cpu usage was about 54 % and temperature around 86°C.
But after 30 minutes, only 8% of the task was done. That would suppose around 5 hours to get the job done. I do not like the idea of 5 hours of the cpu at 86°C , so I cancelled.

What would you say? Should I abandon the attempt to use mx-snapshot on this pc? Or may be there are some other tweak I could try on the configuration file?

Is there a way to pause the program so that you can let the cpu rest and cool down and resume later? May that help?

Another thing, how can I make an idea of how large the shapshot would be at the end if the process finishes?

I watched dolphin's video and I think I heard him recommend that it would be safer (for making later a bootable iso) if it the snapshot wasn't larger that 4 Gb.

(In the meanwhile, i did a snapshot with Timeshift. No problem with this. Fast and low cpu usage. 9.6 Gb size.)

Thanks in advance.

Here are my specs:

Code: Select all

$ inxi -F
System:    Host: cq40mx Kernel: 4.14.0-3-amd64 x86_64 bits: 64 Desktop: Xfce 4.12.3 
           Distro: MX-17.1_x64 Horizon December 15  2017 
Machine:   Type: Laptop System: Hewlett-Packard product: Compaq Presario CQ40 Notebook PC 
           v: F.31 serial: <root required> 
           Mobo: Compal model: 3607 v: 99.97 serial: <root required> BIOS: Hewlett-Packard 
           v: F.31 date: 02/03/2009 
Battery:   ID-1: BAT0 charge: 95.0 Wh condition: 95.0/95.0 Wh (100%) 
CPU:       Topology: Dual Core model: Pentium T4200 bits: 64 type: MCP L2 cache: 1024 KiB 
           Speed: 1197 MHz min/max: 1200/2000 MHz Core speeds (MHz): 1: 1197 2: 1197 
Graphics:  Device-1: Intel Mobile 4 Series Integrated Graphics driver: i915 v: kernel 
           Display: x11 server: X.Org 1.19.2 driver: intel resolution: 1280x800~60Hz 
           OpenGL: renderer: Mesa DRI Mobile Intel GM45 Express v: 2.1 Mesa 13.0.6 
Audio:     Device-1: Intel 82801I HD Audio driver: snd_hda_intel 
           Sound Server: ALSA v: k4.14.0-3-amd64 
Network:   Device-1: Broadcom Limited BCM4312 802.11b/g LP-PHY driver: wl 
           IF: wlan0 state: up mac: 00:21:00:da:39:99 
           Device-2: Realtek RTL8101/2/6E PCI Express Fast/Gigabit Ethernet driver: r8169 
           IF: eth0 state: up speed: 100 Mbps duplex: full mac: 00:23:5a:9e:84:ba 
Drives:    Local Storage: total: 1.06 TiB used: 602.22 GiB (55.7%) 
           ID-1: /dev/sda vendor: Samsung model: HM160HI size: 149.05 GiB 
           ID-2: /dev/sdb type: USB vendor: Toshiba model: External USB 3.0 size: 931.51 GiB 
Partition: ID-1: / size: 14.36 GiB used: 9.42 GiB (65.6%) fs: ext4 dev: /dev/sda5 
           ID-2: /home size: 114.33 GiB used: 71.00 GiB (62.1%) fs: ext4 dev: /dev/sda6 
           ID-3: swap-1 size: 1.96 GiB used: 37.9 MiB (1.9%) fs: swap dev: /dev/sda2 
Sensors:   System Temperatures: cpu: 68.0 C mobo: N/A 
           Fan Speeds (RPM): N/A 
Info:      Processes: 224 Uptime: 21h 34m Memory: 3.76 GiB used: 1.17 GiB (31.2%) Shell: bash 
           inxi: 3.0.25 

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Adrian
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Re: Snapshots

#29 Post by Adrian » Fri Nov 30, 2018 10:13 pm

I wonder if in this case is not better to use something like cpulimit or cgroups, see these articles:

https://www.howtoforge.com/how-to-limit ... untu-linux
http://blog.scoutapp.com/articles/2014/ ... nd-cgroups

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Laurentius
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Re: Snapshots

#30 Post by Laurentius » Fri Nov 30, 2018 10:57 pm

Thanks, Adrian.
I'll check that.

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