IBM’s latest System Storage DS Express family gives SMBs an In this exclusive review we put the DS model through its paces to see if it has Both models have a single hot-swap controller module which can be IBM has dual-port 6Gbps SAS or four-port 8Gbps FC and Gigabit iSCSI options. Page 1 of 2 IBM System Storage DS Express review. 1. but there’s room for a daughtercard, and IBM offers dual-port 6Gbits/sec SAS or Each controller has an embedded port SAS expander linked to its expansion. Description: IBM System Storage DS Express Dual Controller Storage System Part Number(s) IBM Part# A2D. Overview: The IBM System Storage .

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Remote Mirroring to provide storage system-based data replication from one DS system to another DS system using either ds33512 or asynchronous data transfers over Fibre Channel communication links.

Family +01 IBM System Storage DS Storage Systems and EXP

Features – No charge. With direct attachment support and the capability to be shared by multiple host servers, the DS with SAS provides ease-of-use and simplicity at an affordable price.

Both ports on a card will run at the same link speed. It provides a complete physical view of your DS, but with expertise built into the interface and automated policy decisions, you no longer have to contend with low-level activities.

1746-c2a IBM Ds3512 12 Bay Dual Controller Storage

Base No Longer Systfm as of June 21, This feature provides an activation key to the enable the Remote Mirror function with support for eight mirror pairs per system. The following fiber optic storagf can be ordered with the DS Rich set of data replication functions for business continuity needs FlashCopy creates a capacity-efficient, point-in-time copy of a physical volume for data protection uses, such as file restoration and backup.


This gives you the added flexibility to mix 3. Supported on Model E4A only.

Remote Mirroring supports synchronous or asynchronous data transfers, enabling you to choose the replication method that best meets your protection, distance, or performance requirements: Each feature includes two 8 Gb shortwave SFP transceivers. With the DS, you choose the initial system configuration that matches your performance requirements and budget: Dz3512 provides an activation key to increase the quantity of FlashCopy images supported per physical volume from two to four and it enables tsorage Volume Copy function with support for eight active Volume Copy processes, with: Maximum allowed applies to total quantity of 62xx, 63xx, and 65xx features.

System Storage DS * 1GB cache, sngl ctrller, 2x6G SAS ports

Upon completion of the Volume Copy process, the new volume can be mapped to any host controlker functions as a standard volume.

Total quantity of 55xx features cannot exceed 20 within a DS system, where a system is defined as the DS storage system and all attached EXP expansion units.

These cables must be customer-supplied and is not available for ordering with the DS The following configurations are available: Full Disk Encryption FDE provides local key management and disk drive-level encryption for comprehensive data security and protection.

As a convenience, a limited selection of cables can be ordered with the DS Conroller to the Product Number section for feature numbers and part numbers: This is a nearline disk drive. The total volumes per system cannot exceed the limits stated above under maximum volumes per system.

This card can be configured to run at either a 1Gb or 10Gb link speed. Accessibility by people with disabilities A U. SAS host interface ports are standard on all DS models.


Feature PN 68Y is a corequisite. This card requires the use of an external switch and the DS iSCSI host ports cannot be directly attached to server ports.

New 1746A2D

The DS brings the following new functions into the DS series family: For example with controller firmware level Additional transceivers can be ordered using feature PN 00W Remote Mirroring provides storage system-based data replication from one DS dial to another DS system over Fibre Channel communications links. Customer replacement parts None.

Additional transceivers can be ordered using feature PN 69Y Feature PN 68Y is a required corequisite. Refer to the DS syxtem documentation and the IBM Systems Support site for additional information on firmware levels and other requirements: Use Feature pn 00W when the DS is upgraded to controller firmware v7.

Plant Feature exchanges Not available. Syystem refers to a total of hours in any given year, but no more than 15 occurrences during that one-year period. Feature or PN 68Y or 68Y is a required prerequisite 32 FlashCopy instances are provided without charge when the DS is upgraded to controller firmware v7. Total quantity of 51xx features cannot exceed The DS is available in two models: IBM recommends using FlashCopy with controller firmware v7.

This balanced performance, combined with the ability to handle concurrent workloads, makes the DS a great fit for consolidation and virtualization environments. Asynchronous mirroring queues remote writes to reduce the latency, thus enabling long distance replication while increasing local system performance.

Two intelligent array controllers with 2 GB cache 1 GB per controller.