Mazhar Hussain | Elance
 
176985602337900
Last Sign-in: Jun 8, 2013

Mazhar Hussain

UNIX and SAN storage Specialist
   Pakistan
  |   Islamabad, Punjab
  |  2:59 am Local Time

Resume/C.V.

I am senior Linux/Unix, SAN and Storage systems Specialist with 8+ years of professional experience in IT/Telecom.


Specialties
Enterprise Arrays: EMC Symmetrix ( SRDF, TF,SNAPS) , XP 12 K,
SAN Fabrics: MDS 9513 SAN Directors & Brocade switches, Zoning & FCIP configuration, ISL
OS: HP-UX, Sun Solaris, Linux
Volume Managers : LVM, VERITAS , SVM, ZFS
Mid-ranges Arrays :EMC clarions, HP EVA, SUN
HA Clusters : MC/Service Gurard, SUN and VERITAS Cluster
Backup Software : HP data Protector, VERITAS Netbackup ESL 712e, VDL
Virtualization :VMware, EXS, nPar, vPar,Solaris Containers, HP VM
VOIP : Asterisk
Scripting : bash, Perl, AWK, SED
Service Description
UNIX Operations
Optimized & customized configuration of Sun Solaris 10 on SUN SPRAC based systems (M5000, SF E6900, E6800, V890, V490 T2000, T5142 etc).
Configured and managed operations on SUN Cluster “3.1 & 3.2”, MPXIO, IPMP and kernel configurations for Solaris 10 & 9, Furthermore enabled monitoring or Oracle databases, listeners and third party applications though GDS cluster scripts.
Administered and optimized VERITAS Storage foundation (volume manager and File systems), VCS cluster for monitoring Databases and application HA, Online File system extension and management of VXVM for cross platform.
Worked on SVM (Solaris Volume Manger) for creation /expansion of volumes using Meta db & Meta devices for creation of Raid volumes, Raid 0, 1, 5 etc.
Configured and managed domains on M5000 and Solaris Containers, Global Zones for resource sharing and RBAC & SUDO for Access and security purpose. In addition worked on Console/ILO/ALOM/XSCF for troubleshooting and management purpose.
Configured Virtual and Hard partitions ("nPar & vPar) and HP virtual machines on high-end, mid range integrity systems/blades and HP Itanium Superdome 9000 and HP Itanium blades.
Implemented and managed MC/Service for HA and Disaster recovery, In Addition Integrated GWLM (ICAPS, GICAPS) for resource sharing between virtual and hard partition using GWLM b/w different systems.
Accomplished HP-UX performance monitoring by using kernel tuning, configuration of OS Patch clusters on different version of HP-UX 11i like v2 and v3 and DRD clones.
Managed operations related to NFS, NTP, SAMBA, CIFS, ISCSI & FC storage protocols and services.
Configured striped logical volumes for better IO performance, achieved IO load balancing and storage HA for enterprise applications like SIEBEL CRM using LVM alternative paths and Auto/Power path.
Adapted IGNITE UX for OS disaster recovery; configured Hp Secure/auto Path, EMC power path, HP APA, IP Filters, RSH, trusted systems for systems security purpose.
Programmed bash, Perl, AWK and SED scripts for automation and proactive system monitoring and administrative purpose like Events notifications etc.
Configured and managed RHEL, RHAS, Centos and Red hat Cluster Suit, Linux native multipath and NIC bonding.
Configured Oracle 10g & 11g and relevant software required by application and DB teams for different applications
Can also work on AIX for IBM mid-to-high end machines if required, In addition provided system level support to Geneva, Siebel CRM, Mediation, Provisioning and DWH teams.
Also have concepts and working knowledge on Oracle DB installation/configuration, Data Guard, Golden Gates and Oracle RAC.
Operations on Enterprise Storages, SAN Infrastructure and Blades Enclosures
Operations and maintenance of Enterprise EMC Symmetrix VMAX Arrays used SYMCLI command sets to configure Time Finder Clones (symmir, symclone AND SNAPs), Thing Provisioning, SRDF Sync/Async, SRDF AR, QOS, Open Replicator (Hot/Cold Pull and PUSH Scenarios) for Disaster recovery and data migrations between different arrays.
Planed and implemented optimized Symmetrix configurations like mapping and masking of devices to hosts and migrated device non-disruptively using Virtual LUN Technology. In addition worked on SAVE, DATA pools, DSE pools enablement for SRDF Async pairs.
Monitored and analyzed Storage Performance and events using SPA, ECC, SMC, “ESRS gateway” and SYMAPI utilities.
Managed operations and configurations on XP 12k Storage arrays for configuring of “CA synchronous”, “CA journal”, “Raid Manager” and “Business continuity volume (BC)” for disaster recovery, backups and cloning data for reporting platforms .
Administered Mid-range Arrays i.e. HP EVA 5500, 4400, EMC Clarion CX4-480, CX4-240, EMC Centera, Celerra and NAS boxes for archiving and storage presentations on different OS platforms.
Planned and explored different scenarios of storage virtualization and TIERING for different application based on IOPS.
Designed and configured Cisco MDS 9513 SAN Directors for VSAN configuration, zoning, ISL, Port-channeling, especially implemented Core-Edge design across two sites using CWDM switches over Dark fiber connectivity. In addition also designed and implemented FCIP over Layer 3 for Disaster recovery site project. Planned and executed non-disruptive IOS upgrades to have extended feature sets.
Implemented and tuned FCIP configurations for VSAN-extension and IVR (inter-vsan routing) using transit VSANs and data compression for SAN replication project. For interconnectivity between Brocade and MDS switches configured Inter-operability, access gateways and failover groups to consolidate whole infrastructure in same VSAN.
Managed and administered HP C7000, Dell M1000e Blade Enclosure, Cisco UCS and IBM Blade Center for smooth connectivity with SAN and network.
Worked on VMware vSphere product, which includes configuration of ESX, ESXI hosts, vCenter and Guest OS also implemented DRS, HA, VMOTION and storage VMotion.


Worked on Web hosting solutions on dedicated UNIX servers and managed them remotely via SSH.
Managed and configured all version for RHEL, RHAS, Fedora, DEBAIN, Sun Solaris 10, FreeBSD, Centos OS 4.5) for webhosting purpose.
Configured and managed all services i.e. firewall ,DHCP, DNS, Send mail, procmail and Apache1.x and apache2, Apache JSERV with curl, OPENSSL, MOD_PERL, MYSQL , PHP, NTP, Squid Cache Proxy server along with Squid Guard.
Configured and managed Asterisk VOIP Server for IVR management, call queuing /waiting for inbound calls, call transferring, Call conferencing, recording, music on hold, Call forwarding, voice mail Preview/Predictive /Auto Dialers.


Configured and managed DNS subsystem (primary, secondary and cache only) for webhosting; Mail Scanner, Spam Accession and “CLAMAV antivirus” for to filter unwanted emails. Worked on operations on Webmail i.e. HORDE, SQUIRRELMAIL and Open webmail.
Managed and administered service like RDIST, RDISTD RSH RLOGIN, CRON jobs, ATQ, FTP, SFTP, SCP, Backup Recovery plane for daily, weekly, full and cold and HOT backups of databases MYSQL, NFS, DHCP and samba servers there. Managed and configured best practices related to kernel compilation for installing additional drivers of newly plugged hardware and for performance tuning of operating systems.
Installed and configured net-SNMP, MRTG, web stat (WEBALIZER), Awstats to analyze bandwidth utilization, hits, no of visitors per hour, per day and per months
Education
BAQAI University of Karachi
MCS
2001 - 2003
Employment
TELENOR PAKISTAN
Sr Systems Engineer
2008 - Present
TELENOR Pakistan is second largest fastest growing Telecom mobile operator in Pakistan. It is most important member of TELENOR GROUP (www.telenor.com) which is a leading telecommunications services provider worldwide. Currently I am working as Systems Specialist and key areas of my responsibility are following. HP-UX Operations ? Configured Virtual and Hard partitions (nPar & vPar) and HP virtual machines on high-end, mid range integrity systems/blades and HP Itanium Superdome 9000. ? Implemented MC/Service Guard b/w different sites. In Addition Integrated GWLM (ICAPS, GICAPS) for resource sharing between nPars and vPars in GWLM domains across different systems. ? Accomplished HP-UX performance monitoring, kernel tuning, configuration OS Patch clusters on different version of HP-UX 11i like v2 and v3 and DRD clones. ? Worked on NFS, CIFS, iSCSI & FC and storage protocols. ? Managed LVM and VXVM (VERITAS volume manager). Configured striped logical volumes for better IO performance, furthermore achieved IO load balancing and storage HA for high end applications like SIEBEL CRM using LVM alternative paths and Auto/Power path. ? Adapted IGNITE UX for OS disaster recovery and also configured Hp Secure/auto Path, EMC power path, HP APA, SD-UX, IP Filters, remsh, CIFS, NFS, trusted systems for security purpose. ? Programmed bash, Perl, AWK and SED scripts for proactive system monitoring and administrative purpose like Events notifications etc. ? Configured Oracle 10g & 11g and relevant software required by application and DB teams. different applications SUN Solaris, LINUX and Others ? Optimized & customized configuration of Sun Solaris 10 on SUN SPRAC based systems (M5000,V490 T2000 , T5142 etc) ? Configured SUN Cluster 3.1 & 3.2, MPXIO, IPMP and HP Secure Path with Solaris 10 & 9. Furthermore enabled monitoring or Oracle databases, listeners and third party applications though GDS scripts. ? Administered VERITAS Cluster and volume manager and VERITAS, Online File system extension and management of VXFS files system. ? Worked on SVM (Solaris Volume Manger) for creation /expansion of volumes using Meta db & Meta devices for creation of Raid volumes, Raid 0, 1, 5 etc. ? Administered VERITAS cluster for monitoring Databases and application HA. ? Configuration of RHEL, RHAS, Centos and Red hat Cluster Suit , Linux native multipath and NIC bonding ? Configure Zones for resource sharing and RBAC & SUDO for Access. ? Can also work on AIX if required. In addition provided system level support to Geneva, Siebel CRM, Mediation, Provisioning and DWH teams. Operations on Enterprise Storage, SAN Infrastructure and Blades Enclosures ? Managed Enterprise EMC Symmetrix VMAX Arrays and used SYMCLI command sets to configure Time Finder Clones solutions (symmir, symclone AND SNAPs), Thin Provisioning, SRDF Sync/Async Disaster Recovery operations, SRDF AR, Open Replicator ( Hot/Cold Pull and PUSH Scenarios ) and open migrator for Disaster recovery and data migrations. In addition worked on SAVE, DATA pools, DSE enablement for SRDF Async. ? Worked on Symmetric configurations like created, mapped and masked devices and migrated device non-disruptively using Virtual LUN Technology. ? Monitored Storage Performance and events using SPA, ECC, SMC and ESRS gateway. ? Administered XP 12k Storage arrays and fulfilled agreed SLAs with business in terms of RPO and RTO using CA synchronous, CA journal, Raid Manager and Business continuity volume (BC) for disaster recovery. ? Administration of Mid-range Arrays like HP EVA 5500, 4400, EMC Clarion CX4-480, CX4-240, EMC Centera, Celerra and NAS boxes for archival solution. ? Designed and configured Cisco MDS 9513 SAN Directors for VSAN configuration, zoning, ISL, Port-channeling, especially implemented Core-Edge design across two sites using CWDM switches over Dark fiber connectivity. In addition also designed and configured FCIP connectivity using MSM modules over layer
COMSATS ISP
Systems Engineer
2006 - 2008
Worked as Assistant Director Systems at COMSATS Internet Services, COMSATS Headquarters Building 9, Shahrah-e-Jamhuriat, G-5/2 Islamabad 44000 Pakistan http://www.comsats.net.pk. This is pioneer Internet Service provider in Pakistan. ? Administration and Managing of Data center Application, along with technical support to other regional Nodes (like Karachi, Lahore) via SSH /telnet. ? Sun Solaris 9/10 is installed and managed here both on Sun SPARC Servers and Intel X86 Machines ? Managing Antispam /Antivirus email gateway services like, Symantec Mail Security for SMTP, Trend Micro, SpamAssassin, ClamAv, spam-milter etc on Linux/Sun Solaris Operating systems. ? For Administration of Data storage of Solaris worked on both hardware /software Raid, Volume Manager (State Database, RAID-0, RAID-1 and Raid 5 on both sun SPARC, Solaris X86 machines and Linux. ? In addition worked on Red Hat enterprise Linux 3,4 and 5, and also configured Windows 2003 Cluster. ? Worked on EMC and HP entry level storages. ? Radius Servers configuration for authentications of Dialup /DSL clients, ? Administration of DNS, Multiple Master/Slave Name servers for more than 1000 domains. ? Tape disk Backup and restorations most of works is done with bash, sed, awk scripts on DDS4 and Ultrium LTO Tape disks, and Different shell scripts menu for support team to handle queries. ? For Network Monitoring Installed and configured OpenNMS, net-snmp, MRTG to monitor traffic and various resources. ? Monitoring logs, schedule jobs, user rights, Linux Iptables firewall, tcp wrappers ? Worked on MTA and MDA like Sendmail, Qmail, Postfix Openwebmail , Qpopper, imap ,procmail , maildrop , SMT Auth on both Sun SPARC and linux Operating systems. ? Also had keep on updating system +applications by installing patch upgrades, hot fixes and version upgrades when necessary to make our data less vulnerable ? Highly optimized Squid Proxy Cache server with reiserfs/ reiser4 and diskd support. ? Worked on many projects with different clientage like mail.pac.org.pk (PAC KAMARA ) ,ISB.aiou.edu.pk( AIOU ), mail.comsats.edu.pk (CIIT) where Mail + ISP setup configurations are optimize according to needs of clients ? Installation and configuration of databases like Oracle 10g, MySql ,Postgresql.
Nettech LTD Virtual Soft
Systems Administrator
2003 - 2006
(Virtual Soft LTD which is offshore company of Net Tech Ltd (UK based nettechltd.com) providing IT solutions for world wide clients) ? Web hosting management on dedicated servers, which are UNIX based. ? To manage/configure LINUX (Red hat 6.2, 7, 8, 9, fedora core 1, 2,3,4 Debain 3.0, Sun Solaris 10, FreeBSD, Centos OS 4.5) on remote dedicated Servers. ? All the services like firewall ,DHCP, DNS, Send mail, procmail and Apache1.x and apache2, ApacheJserv with curl, openssl, Mod_perl , MySQL ,PHP,NTP ? Squid Cache Proxy server: along with Squid Guard ? Asterisk VOIP Server: IVR management, call queuing /waiting for inbound calls, call transferring, Call conferencing, recording, music on hold, Call forwarding, voice mail Preview/Predictive /Auto Dialers. ? DNS implementation (primary, secondary and cache only) ,Mail Scanner, SpamAccession and clamAV antivirus for email as well as server to make stop unwanted emails. Also configured Webmail like HORDE, Squirrelmail, Open webmail. ? Rdist ,Rdistd rsh rlogin, cron jobs atq, FTP, SFTP, SCP ,Backup Recovery plane to categorized the areas of daily, weekly, full and cold partial of databases like MySql.NFS, DHCP and samba servers there. Kernel ? MySQL Database Administration, backup etc ? Woked on net-snmp , MRTG , web stat (webalizer), Awstats to analyze bandwidth utilization, hits, no of visitors per hour ,per day and per months .
Payment Terms
Negotiable
Mazhar Hussain | Elance

Mazhar Hussain