similar to: Fwd: Different behavior of net.ipv4.ip_local_port_range between RHEL-5 and RHEL-6

Hi, What's the correct way to change configuration parameters for an iSCSI device? For example I/O scheduler, max_sectors_kb, etc... I could add commands to the S99local script: echo noop > /sys/block/sdb/queue/scheduler echo 64 > /sys/block/sdb/queue/max_hw_sectors_kb Unfortunately, iSCSI device names might change from sdb to, say, sdc (server reboot, iSCSI target reconnection).

Hello, I'm trying to use helper variables like %{rhel} in a .SPEC file on CentOS (as they are defined in RHEL and Fedora [1]), but it seems they are not available. Is there any way to detect automatically CentOS release from a .SPEC file in a RPM build process? As a workaround, I use this hack: %if 0%{?rhel} >= 5 (..) %endif And when calling rpmbuild I use a

Dear Srs, In the page: http://wiki.centos.org/HowTos/Virtualization/OpenVZ Section -> "Additional Resources" "Performance evaluation of Xen vs. OpenVZ by HP Labs" link is broken, it points to: http://www.hpl.hp.com/techreports/2007/HPL-2007-59.pdf And the PDF has been moved to: http://www.hpl.hp.com/techreports/2007/HPL-2007-59R1.pdf Regards, -- Santi Saez

Hi, NetApp support has suggested us aligning partitions to improve performance, in short: starting sector must be divisible by 8. How can I move the start point in a misaligned partition -in production, with ext3- under Linux? A screenshot with a misaligned (start=63s) and aligned (start=64s) partition is available at: http://filesocial.com/lkwvvn2 (If anyone is interested in this topic,

Hi, Is there any working script, similar to deboostrap, for CentOS 5? I have found rpmstrap [1] at RPMforge.. but only works for CentOS-4, and appears that's out of date. thanks! [1] http://dag.wieers.com/rpm/packages/rpmstrap/ -- Santi Saez http://woop.es

Hi, I want to take snapshots of a iSCSI devices from a target that hasn't snapshot/cloning capabilities (it's a Infortrend A16E storage array). What method are you using to make snapshots/clones of iSCSI targets using Open-iSCSI + CentOS? What about using Open-iSCSI + LVM snapshots system? For example: - Take a LVM snapshot in the initiator with "lvcreate". - Give read-only

Dear Srs, yum-updatesd-0.9-2.el5 appears that it's not working on freshly installed CentOS 5.2, using: # rpm -qa "yum*" yum-metadata-parser-1.1.2-2.el5 yum-updatesd-0.9-2.el5 yum-3.2.8-9.el5.centos.2.1 yum-fastestmirror-1.1.10-9.el5.centos I see some bugs ([1], [2] and [3]) in the bug tracker, and more info related to other distros like Fedora, etc.. with the same problem.

Hello. What's the proper way to remove *all symbols* from ELF binaries when building packages with rpmbuild on CentOS? Seems that an out of the box rpmbuild install only discards debugging symbols (strip -g). That's the default configuration for %__os_install_post on CentOS, the step in charge on stripping binaries: $ rpmbuild --showrc (..) -14: __os_install_post

Hello, I'm trying to build PHP 5.3.6 in a CentOS-4 server with MySQL 5.5.10 and I get this error: //usr/include/mysql/my_config_i386.h:610:1: warning: "PACKAGE_NAME" redefined /usr/include/mysql/mysql/psi/mysql_thread.h:100: error: syntax error before "pthread_rwlock_t" /usr/include/mysql/mysql/psi/mysql_thread.h:100: warning: no semicolon at end of struct or union

Dear Srs, I get this error when running "mkfs.ocfs2": ================================================================================= # mkfs.ocfs2 -b 4K -C 32K -N 255 -L backup_ocfs2_001 /dev/sdb1 mkfs.ocfs2 1.2.7 Filesystem label=backup_ocfs2_001 Block size=4096 (bits=12) Cluster size=32768 (bits=15) Volume size=6000488677376 (183120382 clusters) (1464963056 blocks) 5678 cluster

Hi, Is there any way to list availabe RPM rollback's and timestamps in CentOS 4? It's possible to get RPM rollbacks with up2date, but appears that's deprecated ;-( # up2date --list-rollbacks This feature is deprecated and no longer functional I want a method to list current available rollback and the timestamp: http://www.linuxjournal.com/article/7034 How do you deal with this

Hi, What's the correct way to disble TSO (TCP Segmentation Offload) in RHEL5? I have tried adding those options in ifcfg-ethX configuration file: # grep ETHTOOL /etc/sysconfig/network-scripts/ifcfg-eth0 ETHTOOL_OPTS="tso off" And also with: ETHTOOL_OPTS="-K eth0 tso off" But when restating the server TSO is enabled: # ethtool -k eth0 tcp segmentation offload: on As

Hi, How do I setup multiple password protected iSCSI targets on Linux? I know that mounting a password protected iSCSI target requires modify these records with the appropriate values: node.session.auth.username = My_ISCSI_USR_NAME node.session.auth.password = MyPassword discovery.sendtargets.auth.username = My_ISCSI_USR_NAME discovery.sendtargets.auth.password = MyPassword But, now I need

Dear Srs, I'm trying to automount an iSCSI device at system startup, this is the configuration: - CentOS 5.1, with kernel 2.6.18-53.1.14.el5PAE, i686 arch - iscsi-initiator-utils 6.2.0.865-0.8.el5 - iSCSI target is a Infortrend A16E-G2130-4 I have solved the "initial_login_retry_max" problem [1] and Open- iSCSI logs into Infortrend target without problems, with 10 retries in

Hello, I get this error when trying to build Keepalived 1.2.1 on a CentOS-4 box: # gcc -g -O2 (..) -D_WITH_LVS_ -D_WITH_VRRP_ -c smtp.c In file included from ../include/vrrp.h:31, from ../include/smtp.h:34, from smtp.c:27: *../include/vrrp_ipaddress.h:32:27: linux/if_addr.h: No such file or directory* In file included from ../include/vrrp.h:31,

Hi, Can a call to multiple devices be cancelled in all of them at same time? With next dialplan, exten => 100,1,Dial(SIP/101&SIP/102) when a call rings on 101 and 102 and one of them rejects the call "with 486 Busy here", is it possible to reject the call in the other device at same time? I read application dial options but I can't find any that can help me to achieve this

Dear Srs, I'm trying to monitor CPU temperatures in a PowerEdge 860 server, running CentOS 5.1 with 2.6.18-53.1.6.el5 kernel, using lm-sensors v2.10.0. Running "sensors-detect" I get: ====================================================================== (..) We can start with probing for (PCI) I2C or SMBus adapters. You do not need any special privileges for this. Do you want

Hi - We have an ext3 file system which is 3.5TB in size (on top of lvm). Free are 172049011 out of 854473728 4096K blocks, and 396540654 out of 427245568 inodes. This is using Scientific Linux 4.4 (a RHEL clone). The filesystem consists of multiple backups created with rsync using --link-dest, which hard links files which haven't been modified to the previous copy. There are several hundred

Dear Srs, I'm getting this error when trying to connect to a Infortrend A16E- G2130-4 storage v?a iSCSI. > Apr 29 10:24:40 vz-10 kernel: scsi1 : iSCSI Initiator over TCP/IP > Apr 29 10:24:41 vz-10 kernel: Vendor: IFT Model: A16E- > G2130-4 Rev: 361F > Apr 29 10:24:41 vz-10 kernel: Type: Direct- > Access ANSI SCSI revision: 04 > Apr

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