varsha 
vinay How to resize Netapp Qtree Quotas .. ?
cloudibee 1) Get the quotas file from netapp # rsh unixfoo-nfs1 rdfile /etc/quotas > /tmp/quotas 2) Edit the quotas file and change the quota for the required qtree. # vi /tmp/quotas…
Useful AIX tips
Display paging space details # lsps -aPage Space Physical Volume Volume Group Size %Used Active Auto Typehd6 hdisk1 rootvg 8192MB 1 yes yes lv# Memory module details : # lscfg…
Linux RPM database recovery
Sometimes you may get the below error while running “rpm -qa” or any other rpm listing command. This error suggests that the RPM db is corrupted and you need to…
Increasing swap performance
If your Linux machine is configured with several swap partitions, the default trend is to use of one partition at a time. Once one swap partition has been full the…
Netapp deduplication
Netapp deduplication – is a new technology to control the rate of data growth. The average UNIX or Windows disk volume contains thousands or even millions of duplicate data objects.…
HPUX tips
1) Find number of processors in the machine. # /usr/sbin/ioscan -k -C processorH/W Path Class Description===============================160 processor Processor166 processor Processor# 2) Find the model of the hardware # model9000/800/L2000-44# 3)…
AIX performance monitoring : filemon
“filemon” command monitors the performance of the file system, and reports the I/O activity. The I/O activity monitored is based on the time interval during which the filemon is run.…
HP-UX : Kernel Parameter Recommendations
Below is the list of commonly recommended HPUX kernel parameters. But this may vary based on your application need. # Parameter Value bufpages 0 # on HP-UX 10.X create_fastlinks 1…
HPUX : Identify 32-bit or 64-bit kernel
Here are the steps to identify whether you are running a 32-bit or 64-bit kernel. getconf KERNEL_BITS will return whether it is a 32 bit or 64 bit. hpux1 #…
Oracle’s Direct NFS
Direct NFS (DNFS) is an Oracle Database 11g implementation of NFS client that runs as part of the Oracle Database 11g engine. Through this integration, the Oracle database engine optimizes…
Few /proc files
/proc/cmdline – file has the parameters passed to the kernel while the system boots-up. /proc/kcore – This file represents the physical memory of the system and is stored in the…
Know about Netapp Snapvault
Netapp SnapVault is a heterogeneous disk-to-disk backup solution for Netapp filers and systems with other OS (Solaris, HP-UX, AIX, Windows, and Linux). In event of data loss or corruption on…
AIX : Managing service subsystem
lssrv , stopsrc and startsrc are used to manage service subsystem in AIX. lssrc lists out all services that are active and inactive. “startsrc” and “stopsrc” are used to start…
Netapp VIFs loadbalancing
NetApp loadbalancing algorithm for determining ethernet load balancing (vifs) differs from Cisco, so it’s normal to see unbalanced traffic in Netapp vifs. The Cisco method for determining load balancing is…
Steps to create initrd
Creating initrd using mkinitrd # mkinitrd -v -f –with=e1000 /tmp/initrd.gz 2.6.9-55 Extracting the initrd image to add contents in it # mkdir /initrdroot# cd /initrdroot# gzip -dc /tmp/initrd.gz | cpio…