View unanswered posts    View active topics

All times are UTC - 6 hours





Post new topic Reply to topic  [ 7 posts ] 
Print view Previous topic   Next topic  
Author Message
Search for:
 Post subject: Best way to use an SSD ?
PostPosted: Fri Jan 13, 2017 5:24 pm 
Offline
Joined: Wed Mar 03, 2004 7:43 pm
Posts: 743
Location: Sydney, Australia
So, I have built a new box, 120GB SSD installed from 8.4.2, and old 500G full of recordings mounted as /myth

However, this is not ideal. e.g. swap is on an SSD partition, and there is over 100G of fast unused storage.

Anyone have suggestions for a better setup?

LiveTV directory on SSD ?

Share all media across both drives (so at least a quarter of them are on the fast partition) ?

_________________
| Nigel Pearson, nigel@ind.tansu.com.au
| Telstra BID, Sydney, Australia
|
|"Things you own end up owning you" - Tyler, Fight Club


Top
 Profile  
 
PostPosted: Fri Jan 20, 2017 10:28 pm 
Offline
Joined: Wed Jan 18, 2006 8:36 pm
Posts: 177
I won't claim my situation is ideal, but here's what I have:
Code:
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0 111.8G  0 disk
├─sda1   8:1    0  23.3G  0 part /
├─sda2   8:2    0   3.7G  0 part [SWAP]
├─sda3   8:3    0   343K  0 part
├─sda4   8:4    0     2M  0 part
├─sda5   8:5    0   7.5G  0 part /home
├─sda6   8:6    0   3.7G  0 part /data/srv/mysql
└─sda7   8:7    0  73.7G  0 part /data/storage/SanDiskSDSSDA120G_163450449009
sdb      8:16   0   5.5T  0 disk
└─sdb1   8:17   0   5.5T  0 part /data/storage/WDCWD60EFRX-68L0BN1_WD-WXC1HB4P


I used the standard installation, so my swap is on the SSD and I've "wasted" the storage area on the SSD by removing it from the active volumes in the mythbackend configuration.

Without shutting down the system and using a re-partitioning tool, I'm not sure you can do much better.


Top
 Profile  
 
PostPosted: Sat Feb 11, 2017 10:22 pm 
Offline
Joined: Tue Aug 15, 2006 11:14 am
Posts: 1196
Location: Orlando FL
I'm pretty sure running swap on your SSD is the absolute last thing you want to do. SSDs wear out with writes so constant writing would be bad for an SSD.

_________________
My System


Top
 Profile  
 
PostPosted: Sun Feb 12, 2017 6:42 pm 
Offline
Joined: Fri Jul 21, 2006 11:12 pm
Posts: 993
Location: SC
mattbatt wrote:
I'm pretty sure running swap on your SSD is the absolute last thing you want to do. SSDs wear out with writes so constant writing would be bad for an SSD.

It is definitely not the last thing I want to do. For me it comes down to speed vs wear. While it is true that SSDs wear out with writes the number of writes they are rated for is so crazy high that it is usually 10s of years of normal usage before that number is hit. I have been running a SSD in my MBE and swap on that SSD for 6+ years now and smartctl reports it has 90% life remaining. It seems that the spinning disks or something else in the SSD will fail long before writes will kill it. I will take the speed of swap on the SSD.


Top
 Profile  
 
PostPosted: Sun Feb 12, 2017 6:57 pm 
Offline
Joined: Mon Apr 23, 2007 1:45 pm
Posts: 389
Location: Fargo, ND, USA
Ever sense MythTV went to all the cutesy graphics I have had up my RAM from 2GB to 4GB.
It is an extreme rarity that anything is sent to my swap file. You can use the command
Code:
free -k

it will give you the Free RAM and Swap file size in kilobytes.
or
go to Xymon and click the dot under memory and see if there is any usage of swap in the
last three days in chart form.

My desktop that I use has a Intel SSD installed as a system drive in 2011. First machine on
and last off. Take everything you have ever read that is bad for a SSD drive, I do that every day.
I just checked the drive and it has 97% estimated lifetime left before I start loosing capacity.
So with a little crude math I got until the year 2217 before I have to really start worrying about it.

_________________
TVBox
LinHES R8.4


Top
 Profile  
 
PostPosted: Sun Feb 12, 2017 10:32 pm 
Offline
Joined: Tue Aug 15, 2006 11:14 am
Posts: 1196
Location: Orlando FL
I stand corrected.

_________________
My System


Top
 Profile  
 
PostPosted: Wed Feb 22, 2017 3:51 pm 
Offline
Joined: Fri Jul 21, 2006 11:12 pm
Posts: 993
Location: SC
TVBox wrote:
go to Xymon and click the dot under memory and see if there is any usage of swap in the
last three days in chart form.
If you want to see longer than 3 days click the graph.


Top
 Profile  
 

Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 7 posts ] 


All times are UTC - 6 hours




Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
Powered by phpBB® Forum Software © phpBB Group

Theme Created By ceyhansuyu