Solaris Volume Manager (SVM) : Growing mirrored metadevices online Solaris Volume Manager (SVM) : Growing concat metadevice In the example below, we have a 3 column RAID5 metadevice d10 [ size - 1GB ] with 3 disks - c5t23d0s1, c5t24d0s1, c5t25d0s1. The high level steps to grow the RAID 5 metadevice d10 are : 1. Attaching a new disk to the RAID 5 metadevice as a concatenated device. 2. Growing the file system online. Once we have done growing the RAID 5 metadevice, we would still have a … [Read more...] about Solaris Volume Manager (SVM) : Growing RAID 5 metadevices online
Archives for March 2014
Solaris Volume Manager (SVM) : Growing mirrored metadevices online
Solaris Volume Manager (SVM) : Growing RAID 5 metadevices online Solaris Volume Manager (SVM) : Growing concat metadevice The example shown below uses metadevice d3, which is a 33Gb mirror with a mounted file system. The high level steps to grow the mirrored metadevice d3 includes : 1. Attaching 2 more sub-mirrors (bigger ones - d32 and d33) to the parent metadevice d3. 2. Detaching the older sub-mirrors d30 and d31 after sync. 3. Growing the parent metadevice d3 to reflect new size. 4. … [Read more...] about Solaris Volume Manager (SVM) : Growing mirrored metadevices online
Troubleshooting Oracle Solaris Zones (containers) installation issues
Below are some troubleshooting tips when the command # zoneadm -z install fails to install the non-global zone. Verify the configuration before install Make sure the configuration of the zone is correct using the verify sub-command. global # zonecfg -z zone01 zonecfg:zone01> verify zonecfg:zone01> ---- No error should be reported here. Verify proper privileges Check the user is superuser or has "Zone Management" profile. global # id … [Read more...] about Troubleshooting Oracle Solaris Zones (containers) installation issues
The ultimate Solaris zones (containers) interview questions
Basics Whats the difference between a whole root zone and a sparse root zone ? Whole root zone - Gets its own writable copy of all file systems. Thus installation takes longer time than the sparse root zone. - Also called as big zone. - Bigger disk footprint, thus consumes more disk space - To create a Whole root zone we use the option -b with create sub-command : # zonecfg -z zone01 zonecfg:zone01> create -b Sparse root zone - critical file systems like /usr, /lib, /etc, … [Read more...] about The ultimate Solaris zones (containers) interview questions
The ultimate Solaris networking interview questions
Basics What are the files required for a persistent IP address configuration ? To be able to have a persistent IP address configuration across reboots, make sure you edited the mentioned file below : /etc/hostname.[interface] -- Add IP address/hostname for interface /etc/netmasks -- add netmasks for the networks being used to configure IP address /etc/hosts -- Add IP address and hostname How to check the routing table ? To list all the routing table entries : # … [Read more...] about The ultimate Solaris networking interview questions
The ultimate Veritas Cluster Server (VCS) interview questions
Basics What are the different service group types ? Service groups can be one of the 3 type : 1. Failover - Service group runs on one system at a time. 2. Parallel - Service group runs on multiple systems simultaneously. 3. Hybrid - Used in replicated data clusters (disaster recovery setups). SG behaves as Failover within the local cluster and Parallel for the remote cluster. Where is the VCS main configuration file located ? The main.cf file contains the configuration of the entire … [Read more...] about The ultimate Veritas Cluster Server (VCS) interview questions