Dell Products Inc.

Emc IP Holding Company LLC

Gil Ben Zeev

Rivka Mayraz Matosevich

Ziv Dor

Zeev Shusterman

Lior Oded Bahat

Roi Tagar

Evgeny Katz

Yuval Peleg Lieblich

Amir Aloosh

Nir Brifman

Eyal Brami

Tamir Segev

Itai Rosenblatt

Techniques are provided for generating host connectivity plans with load balancing and resiliency. One method comprises obtaining a number of storage system target ports needed for a given host; identifying available target ports in the storage system and an input-output (IO) target component associated with each available target port; and calculating the host connectivity plan until the host connectivity plan includes the obtained number of target ports by: (i) selecting at least one IO target component not already in the host connectivity plan that satisfies a resiliency policy and/or a load balancing policy; (ii) selecting at least one target port associated with the selected at least one IO target component and (iii) adding the selected at least one target port to the host connectivity plan. The resiliency policy may require connectivity without a single point of failure. The load balancing policy may specify that the IO target components serve a substantially equal IO load.

Generation of host connectivity plans with load balancing and resiliency

Techniques are provided for scheduling storage volume migrations based on storage volume priorities and specified constraints. One method comprises generating a migratable volume list indicating storage volumes that can be migrated by evaluating available storage volumes according to an assigned priority and adding a storage volume to the migratable volume list in response to one or more constraints being satisfied that limit a migration of one or more of the storage volumes; and scheduling a migration of a volume part of a given storage volume from the migratable volume list based at least in part on a reevaluation of one or more of the constraints. The migratable volume list can be sorted by the assigned priority for each of the storage volumes. The migratable volume list can be regenerated in response to an event occurring that modifies the migratable volume list.

Storage volume migration scheduling based on storage volume priorities and specified constraints

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Haifa, Israel

Gil Ben Zeev