Proven experience configuring, managing, and troubleshooting enterprise SAN, NAS, and unified storage platforms (e.g., NetApp, Dell PowerStore/PowerMax, Pure Storage), with deep knowledge of block and file protocols including Fibre Channel, iSCSI, NFS, and SMB/CIFS. In-depth Linux systems administration skills (Red Hat/CentOS, Ubuntu), including multipath I/O configuration (DM-Multipath), volume managers (LVM), filesystem tuning (ext4, XFS, ZFS), and performance troubleshooting (I/O latency, IOPS, throughput).