- Community Home
- >
- Servers and Operating Systems
- >
- Operating Systems
- >
- Operating System - HP-UX
- >
- size of /var/adm/crash
Operating System - HP-UX
1753923
Members
8729
Online
108810
Solutions
Forums
Categories
Company
Local Language
юдл
back
Forums
Discussions
Forums
- Data Protection and Retention
- Entry Storage Systems
- Legacy
- Midrange and Enterprise Storage
- Storage Networking
- HPE Nimble Storage
Discussions
Discussions
Discussions
Forums
Forums
Discussions
юдл
back
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
- BladeSystem Infrastructure and Application Solutions
- Appliance Servers
- Alpha Servers
- BackOffice Products
- Internet Products
- HPE 9000 and HPE e3000 Servers
- Networking
- Netservers
- Secure OS Software for Linux
- Server Management (Insight Manager 7)
- Windows Server 2003
- Operating System - Tru64 Unix
- ProLiant Deployment and Provisioning
- Linux-Based Community / Regional
- Microsoft System Center Integration
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Blogs
Information
Community
Resources
Community Language
Language
Forums
Blogs
Go to solution
Topic Options
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО04-22-2008 05:03 AM
тАО04-22-2008 05:03 AM
I have 24GB memory, 16 GB swap/dump and got only 8GB of /var/adm/crash.
Do we really need a /var/adm/crash exactly same size of my dump space ? or 8GB /var/adm/crash is sufficient ?
Do we really need a /var/adm/crash exactly same size of my dump space ? or 8GB /var/adm/crash is sufficient ?
Solved! Go to Solution.
2 REPLIES 2
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО04-22-2008 05:45 AM
тАО04-22-2008 05:45 AM
Re: size of /var/adm/crash
Hi
It depends upon crash configured on the system
# crashconf -v
Have a look on Total pages included and dump space.
Best Regards,
Ramesh
It depends upon crash configured on the system
# crashconf -v
Have a look on Total pages included and dump space.
Best Regards,
Ramesh
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО04-22-2008 06:00 AM
тАО04-22-2008 06:00 AM
Solution
That rather depends on what your kernel is doing if you happen to get a crash and what version of HP-UX you're referring to [newer releases will compress the dump so you need less space, etc.].
crashconf(1M) will give you a basic overview of your dump needs at any given time (including if your system supports compression, etc.). Certainly if it states you need more than 8Gb now you're in trouble... otherwise, we're in Magic 8 Ball territory. There are certainly cases where I could easily imagine an uncompressed dump being in the 22Gb range [problem in I/O space where buffers are allocated and never freed, for example... in-use kernel dynamic memory is dumped for obvious reasons -- if more than 8Gb is in use (and the dump isn't compressible) you're going to have an incomplete and likely useless dump.
If you don't think you'll ever actually need the dump space because you either won't crash, you know your consumption will almost always be in User Space [if you're running a big Oracle SGA that consumes most of the memory and memory locks it, that's a reasonable assumption, for example] or you just don't care to have the dump be analyzed if you ever actually get a crash, you can keep the dump space small. Otherwise, I'd at least make it the 16Gb.
crashconf(1M) will give you a basic overview of your dump needs at any given time (including if your system supports compression, etc.). Certainly if it states you need more than 8Gb now you're in trouble... otherwise, we're in Magic 8 Ball territory. There are certainly cases where I could easily imagine an uncompressed dump being in the 22Gb range [problem in I/O space where buffers are allocated and never freed, for example... in-use kernel dynamic memory is dumped for obvious reasons -- if more than 8Gb is in use (and the dump isn't compressible) you're going to have an incomplete and likely useless dump.
If you don't think you'll ever actually need the dump space because you either won't crash, you know your consumption will almost always be in User Space [if you're running a big Oracle SGA that consumes most of the memory and memory locks it, that's a reasonable assumption, for example] or you just don't care to have the dump be analyzed if you ever actually get a crash, you can keep the dump space small. Otherwise, I'd at least make it the 16Gb.
The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Enterprise. By using this site, you accept the Terms of Use and Rules of Participation.
News and Events
Support
© Copyright 2024 Hewlett Packard Enterprise Development LP