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Tag: TDEV

Storage 0

EMC VMAX – Fully Pre-allocate TDEV

By Fully Pre-allocating a TDEV all the tracks associated with the device are reserved, this may be useful for mission critical apps or avoiding any write miss penalties. Example SYMCLI: Single TDEV example: symconfigure -sid xxx -cmd “start allocate on tdev 0c66 end_cyl=last_cyl allocate_type=persistent;” commit Range of TDEVs: symconfigure -sid xxx -cmd “start allocate on tdev 0c6e:1116 end_cyl=last_cyl allocate_type=persistent;” commit […]

Uncategorized 8

EMC VMAX – Removal Of A TDEV

You may no longer have use for a specific TDEV volume in a Storage Pool and want to free this space to create a new volume or expand an existing volume. These are the steps involved to delete the TDEV and reclaim this space in the Pool. This example details how to delete a single TDEV volume in a Storage […]