8 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
We are trying to set up a single node cloudera hadoop cluster having 16 GB as RAM on linux machine. We are setting up 5.4.2 version.
Now when we check statistics post the installation and run the top command we find that only 1 -2 GB is available. when we trigger map reduce sample job - no... (2 Replies)
Discussion started by: ketankirange
2 Replies
2. Solaris
Hello
i have a Problem - my Server is running with following MEM Information (from TOP):
Memory: 32G phys mem, 4195M free mem, 10G total swap, 9788M free swap
So i think - no problem, 4GB Free, not swapin.
So - our programmer wants to know what process taking how much memory - i... (5 Replies)
Discussion started by: roorbacj
5 Replies
3. Shell Programming and Scripting
Hello all.
I have a script that uses two arrays in the beginning. Saves certain values that i am extracting from df -h command.
array1 and array2 where i is from 0 to 9.
It then goes on and saves the values of the arrays into variables.
for i 0 to 9 , tmp= array2 // I am no writing the... (4 Replies)
Discussion started by: Junaid Subhani
4 Replies
4. UNIX for Advanced & Expert Users
Hi everyone!
I am running KDE 3.5 on a Slackware 12.1 with 1.5Gb of RAM and have the following question:
Running ps on regular intervals of 1 min, I see that 1.3Gb of RAM are being used, leaving me with 0.2Gb of free memory. I tried locating the most greedy app running, which was Kontact and... (0 Replies)
Discussion started by: kerb41
0 Replies
5. Solaris
whats the difference between setting zone capped-memory from zoncfg and setting
rctl: name: zone.max-locked-memory .. if changed the zone.max-locked-memory with prctl it does not change in rcapstat .. but if change with rcapadm it reflects in rcapstat o/p (0 Replies)
Discussion started by: fugitive
0 Replies
6. UNIX for Advanced & Expert Users
can anybody explain me the concepts
virtual memory mangement, swapping and paging?
although i roughly know what they are , i need
more solid distinction between them, and also i want to figure out
the relations between them?
do you have any well-defined definitons for this concepts? (2 Replies)
Discussion started by: gfhgfnhhn
2 Replies
7. Programming
Hi I am relatively new to programming on UNIX platform. I was wondering if there is any system call so that a process can access systems page table or swap pages from main memory by specifying the page number. I am trying to implement various page replacement algorithms like LRU, OPT, FIFO etc.... (1 Reply)
Discussion started by: jayesch
1 Replies
8. UNIX for Advanced & Expert Users
i am looking for the books or web-sites which
explains the unix memory management in detail.
do you know any useful material? (1 Reply)
Discussion started by: gfhgfnhhn
1 Replies
MPT(4) BSD Kernel Interfaces Manual MPT(4)
NAME
mpt -- LSI Fusion-MPT SCSI/Fibre Channel driver
SYNOPSIS
To compile this driver into the kernel, place the following lines in your kernel configuration file:
device scbus
device mpt
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
mpt_load="YES"
DESCRIPTION
The mpt driver provides support for the LSI Logic Fusion-MPT family of SCSI, Fibre Channel and SAS controllers.
HARDWARE
The following controllers are supported by the mpt driver:
o LSI Logic 53c1030, LSI Logic LSI2x320-X (Single and Dual Ultra320 SCSI)
o LSI Logic AS1064, LSI Logic AS1068 (SAS/SATA)
o LSI Logic FC909 (1Gb/s Fibre Channel)
o LSI Logic FC909A (Dual 1Gb/s Fibre Channel)
o LSI Logic FC919, LSI Logic 7102XP-LC (Single 2Gb/s Fibre Channel)
o LSI Logic FC929, LSI Logic FC929X, LSI Logic 7202XP-LC (Dual 2Gb/s Fibre Channel)
o LSI Logic FC949X (Dual 4Gb/s Fibre Channel)
o LSI Logic FC949E, LSI Logic FC949ES (Dual 4Gb/s Fibre Channel PCI-Express)
The Ultra 320 SCSI controller chips supported by the mpt driver can be found onboard on many systems including:
o Dell PowerEdge 1750 thru 2850
o IBM eServer xSeries 335
These systems also contain Integrated RAID Mirroring and Integrated RAID Mirroring Enhanced which this driver also supports.
The SAS controller chips are also present on many new AMD/Opteron based systems, like the Sun 4100. Note that this controller can drive both
SAS and SATA drives or a mix of them at the same time. The Integrated RAID Mirroring available for these controllers is poorly supported at
best.
The Fibre Channel controller chipset are supported by a broad variety of speeds and systems. The Apple Fibre Channel HBA is in fact the
FC949ES card.
This driver also supports target mode for Fibre Channel cards. This support may be enabled by setting the desired role of the core via the
LSI Logic firmware utility that establishes what roles the card can take on - no separate compilation is required.
SEE ALSO
cd(4), ch(4), da(4), mps(4), pci(4), sa(4), scsi(4), targ(4), gmultipath(8), mptutil(8)
LSI Logic Website, http://www.lsi.com/.
HISTORY
The mpt driver first appeared in FreeBSD 4.6.
AUTHORS
The mpt driver was originally written for FreeBSD by Greg Ansley and marginally improved upon by Matt Jacob <mjacob@FreeBSD.org>.
Justin Gibbs <gibbs@FreeBSD.org> and Scott Long <scottl@FreeBSD.org> have made more substantial improvements.
BSD
July 23, 2011 BSD
