10 More Discussions You Might Find Interesting
1. Filesystems, Disks and Memory
hi! i got a rhel 6.3 host that already have an xfs filesystem mounted from a SAN (let's call it SAN-1) whose size is 9TB.
i will be receiving another SAN (let's call it SAN-2) storage of 15TB size. this new addition is physically on another SAN storage. SAN-1 is on a Pillar storage while the new... (6 Replies)
Discussion started by: rino19ny
6 Replies
2. AIX
Hi Experts,
I have configured A D40 Array. There is an faulty disk which is not part of an raid volume but shows fault in the diagnostics.
pdisk15 U0.1-P1-I1/Q1-W40AA83CC2400D
SSA160 Physical Disk Drive ( MB)
Is there a way to stop this... (2 Replies)
Discussion started by: vuppala360
2 Replies
3. AIX
Hi All,
What's the proper procedure for removing SSA arrays? Is the procedure like these?
- rmdev ssa disk
- physical turn off the ssa
- cfgmgr
There's no more filesystem or logical volume on it. It's just pdisk and hdisk.
Thanks in advance,
itik (3 Replies)
Discussion started by: itik
3 Replies
4. AIX
Hi guys,
I'd like to share my migration/mirroring of ssa to san. No downtime for users, probably I/O performance.
here's the step:
1 After the lun had been carved on the SAN and the connections had been done on AIX fiber card
2 “lspv” and look for the new SAN hdisk? on the bottom, say... (1 Reply)
Discussion started by: itik
1 Replies
5. Linux
Dear Srs,
I have a Linux server (linux01) booting from SAN with a volume in a Nexsan SATAbeast storage array (san01). The disk/volume has four ext3 partitions, total size is near to 400GB, but only 20-30GB are in use.
I need to move this disk/volume to another Nexsan SATAbeast storage array... (0 Replies)
Discussion started by: Santi
0 Replies
6. Solaris
Hi everyone,
I wonder if I can canvas any opinions or thoughts (good or bad) on SAN attaching a SUN V880/490 to an EMC Clarion SAN?
At the moment the 880 is using 12 internal FC-AL disks as a db server and seems to be doing a pretty good job. It is not I/O, CPU or Memory constrained and the... (2 Replies)
Discussion started by: si_linux
2 Replies
7. AIX
I've a problem with an IBM StorageWorks - Seagate SSA drive, model ST373453LC (IBM P/N 24P3733, Type S53D073, 72,8 GB 15K - USCSI 4 - 320 SSA). I bought this disk used but working; it came from an unknown IBM SSA storage array. I've removed the SCA - SSA adapter (IBM 18P3051 - 001 - R0) and i tried... (0 Replies)
Discussion started by: Linolinux
0 Replies
8. AIX
I am in the process of updating ssa adapters, drives and enclosures and wanted to know if there are any caveats that anyone would like to share. The documentation is not very clear on the ordering of the updates.
Any tips would be appreciated. (1 Reply)
Discussion started by: chosie
1 Replies
9. AIX
Helo:
We updated form AIX 4.3.3 to AIX 5.1-7 and after this we spent more than double time in read from external disks. Aparently the ssa cards microcode is at last level and all the ptf and apars are instaled.
Out backups expent more than double time, but curiously in read only, if we write in... (0 Replies)
Discussion started by: Javier Gutierre
0 Replies
10. AIX
Hi
Can I add disks on the fly to extend the capacity of an existing RAID 5 volume?
It's created on a 4P Advanced SSA Raid Adapter.
I need to extend a volume group, so I figured it would be easiest to extend the "physical disk" which is a RAID5 volume.
Thanks. (1 Reply)
Discussion started by: osee
1 Replies
I386_PMC_INFO(2) BSD/i386 System Calls Manual I386_PMC_INFO(2)
NAME
i386_pmc_info, i386_pmc_startstop, i386_pmc_read -- interface to CPU performance counters
LIBRARY
i386 Architecture Library (libi386, -li386)
SYNOPSIS
#include <sys/types.h>
#include <machine/sysarch.h>
#include <machine/specialreg.h>
int
i386_pmc_info(struct i386_pmc_info_args *ia);
int
i386_pmc_startstop(struct i386_pmc_startstop_args *ssa);
int
i386_pmc_read(struct i386_pmc_read_args *ra);
DESCRIPTION
These functions provide an interface to the CPU performance counters on the 586-class and 686-class processors.
i386_pmc_info() will return information about the available CPU counters. The information is returned in ia having the following structure:
struct i386_pmc_info_args {
int type;
int flags;
};
The type member describes the class of performance counters available. Valid values are:
PMC_TYPE_NONE No PMC support
PMC_TYPE_I586 586-class CPUs
PMC_TYPE_I686 686-class Intel CPUs
PMC_TYPE_K7 686-class AMD CPUs
The flags member describes additional capabilities of the processor. Valid values are:
PMC_INFO_HASTSC CPU has time-stamp counter
i386_pmc_startstop() is used to start and stop the measurement of the CPU performance counters. The argument ssa has the following struc-
ture:
struct i386_pmc_startstop_args {
int counter;
uint64_t val;
uint8_t event;
uint8_t unit;
uint8_t compare;
uint8_t flags;
};
The counter specified by the member counter is started if the member flags has PMC_SETUP_KERNEL or PMC_SETUP_USER set, otherwise the counter
is stopped. The initial value of the counter is set to val. Additional values for the flags member are PMC_SETUP_EDGE and PMC_SETUP_INV.
The event member specifies some event written to the control register. The unit member specifies the measurement units. The compare member
is a mask for the counter.
i386_pmc_read() will return information about a specific CPU counter measured during the last measurement period determined by the calling of
i386_pmc_startstop(). The information is returned in ra having the following structure:
struct i386_pmc_read_args {
int counter;
uint64_t val;
uint64_t time;
};
The counter to read should be specified by the counter member. Counters are numbered from 0 to PMC_NCOUNTERS. The value of the counter is
returned in the val member. The time since epoch, measured in CPU clock cycles, is returned in the time member.
RETURN VALUES
Upon successful completion zero is returned, otherwise -1 is returned on failure.
BSD
November 10, 2001 BSD