Tahir Khan
Senior System Administrator at IBM
- Role
- Unix Aix Sme at IBM
- Location
- Chicago, IL, US
- LinkedIn followers
- 500 followers
Experience
Unix Aix Sme
Sep 2010 — Present
Responsible for regular & enhanced Migration of AIX p5 series servers from one data center to another and migrations within the data center from old p520, 560, RS to p6 570, p7 740, 770 series servers.Racking, installation and configuration of IBM Power 6, 7 & 8 Hardware’s (p560, p550, 570,595,670,690,740,770) for production.Building, Installation and configuration of LPAR’s with AIX 5.3, 6.1 and 7.1 on p5, p7 servers.Upgrading and updating p5, p6 and p7 systems and devices firmware using HMC.Creating VIOs & LPARs profiles from the HMC command line.Installation and Configuration of VIO servers on p6 570 and p7 740, 770 Hardware’s.Configuration, Installation and setup Network for Dual VIO Servers with Shared Ethernet Adapter, Link Aggregation and MPIO.Testing VIO Servers Failover from Primary to Secondary.Configuration of VIO Clients on p6 570, p7 740, 770 using HMC V.7.Installation of AIX 5.3, 6.1, 7.1 Image on VIO Clients LPAR using NIM (Network Installation Manager).Installation and configuration of NIM master servers and clients.AIX systems administration and Disk Management.Define/setup network protocols, Network File Services (NFS), and Network Information Services (NIS).Responsible for creating 2 & 3 nodes cluster with multiple RG configurations.Testing & troubleshooting HACMP failover and failback.Heavily Involved in Migration of 600+ servers using Double take migration tool.Configuration/Installation HACMP 5.4.1, that included base installation, Cluster installation, Ethernet configuration, Power path configuration with high end AIX and HACMP testing as well as critical application servers script testing.Testing newly configured 2-node HACMP Active-Active, Active Passive with critical failover crashing.Responsible for OS & Application upgrades.Analyzing logs, problem determination, and Recovery and restart.Performed 300+ clients daily mksysb backup to over NIM servers and send backup alert to team using script and cron jobs.
Skills
- Data Center
- Tsm
- Data Migration
- Dns
- Unix Shell Scripting
- Nfs
- Red Hat Linux
- Solaris
- Hacmp
- Ip Networking
- Tcp/Ip
- Cluster
- Disaster Recovery
- Oracle
- Vios
- San
- Vmware
- Unix
- Ibm Aix
- User Administration
- Aix
- Operating Systems
- Servers
- Itil
- Virtualization
- Software Installation
- Nim
- Lvm
- Ibm Pseries
- System Administration
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