- Community Home
- >
- Servers and Operating Systems
- >
- Operating Systems
- >
- Operating System - Linux
- >
- Re: more than 4gb
Categories
Company
Local Language
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
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
Community
Resources
Forums
Blogs
- 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
тАО06-01-2008 10:49 AM
тАО06-01-2008 10:49 AM
more than 4gb
How to make my Operating system work with more than 4gb ram
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-02-2008 04:03 AM
тАО06-02-2008 04:03 AM
Re: more than 4gb
You need an OS 64b
regards
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-02-2008 04:06 AM
тАО06-02-2008 04:06 AM
Re: more than 4gb
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-02-2008 04:40 AM
тАО06-02-2008 04:40 AM
Re: more than 4gb
You can use 16GB RAM on a 32bit hugemem kernel
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-02-2008 04:46 AM
тАО06-02-2008 04:46 AM
Re: more than 4gb
I installed 2.6.18-6-686-bigmem
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-02-2008 04:50 AM
тАО06-02-2008 04:50 AM
Re: more than 4gb
BTW, I am not sure about the memory limit in hugemem kernel, but Its more than 4GB for sure.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-02-2008 04:52 AM
тАО06-02-2008 04:52 AM
Re: more than 4gb
In Linux terms, this means you must have kernel that is configured to support your CPU type and has the CONFIG_HIGHMEM64G option set. Your current kernel is apparently using only the CONFIG_HIGHMEM4G option, which is not enough.
However, the use of PAE on a 32-bit system is not as efficient as running a true 64-bit system. Any I/O operations to memory areas above the 4GB limit must use "bounce buffers".
PAE won't allow you to bypass the fundamental 32-bit limit: you can have several programs with up to 4G of data each if you have enough memory, but no single program can access more than 4 GB of memory.
You should seriously consider installing a 64-bit version of the Debian Linux: it is backwards compatible with 32-bit programs, so you can still run 32-bit programs on a 64-bit OS. If you need your application to access more than 4GB of memory, you'll definitely need a 64-bit application.
MK
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-02-2008 04:58 AM
тАО06-02-2008 04:58 AM
Re: more than 4gb
My proliant shows when starting only 4GB initialized but I'm sure that the server has 5,5GB (4x1gb and 3x512)
Sorry by mi english, I'm from spain.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-02-2008 06:03 AM
тАО06-02-2008 06:03 AM
Re: more than 4gb
dmesg:
Memory: 4147696k/4718592k available (1542k kernel code, 45292k reserved, 587k data, 196k init, 3276776k highmem)
Freeing initrd memory: 4881k freed
Freeing unused kernel memory: 196k freed
cat /proc/meminfo
cat /proc/meminfo
MemTotal: 4153680 kB
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-02-2008 08:06 AM
тАО06-02-2008 08:06 AM
Re: more than 4gb
bigmem is the correct variant to use in Debian for 4-64GB. hugemem is a Red Hat thing, on current RH variants you have to use the hugemem kernel for 16-64GB.