Upgrade considerations
Before you upgrade controllers, review the following considerations.
Refer to the E-Series hardware overview for specific information on supported configurations for each E-Series controller. |
Hardware and firmware requirements
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Duplex and simplex controller upgrades
For duplex controller-drive trays, you replace both controllers. For simplex controller-drive trays, you replace the one controller. In both cases, you must power off the controller-drive tray. As a result, you cannot access data on the storage array until you successfully complete the replacement.
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Trays and shelves
Storage arrays with an E-Series controller shelf are typically managed with the SANtricity System Manager user interface.
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Controller batteries
A new controller is shipped without a battery installed. When possible, you should remove the battery from your old controller and then install that battery in the new controller. However, for some controller upgrades, the battery from the old controller is not compatible with the new controller. In those cases, you must order a battery along with your new controller, and have that battery available before you begin these tasks.
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Synchronous Mirroring and Asynchronous Mirroring
If your storage array participates in Synchronous Mirroring, only iSCSI or Fibre Channel connections are supported between the primary site and the remote site. If the host interface card (HIC) configuration in your new controllers does not include iSCSI or Fibre Channel connections, Synchronous Mirroring will not be supported.
For Asynchronous Mirroring, the local storage array and remote storage array can run different versions of firmware. The minimum firmware version supported is SANtricity firmware version 7.84.
For E4000 controllers, mirroring is only supported on Fibre Channel connections. |
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Storage object limits
If you change your controllers from midrange to entry-level models (for example, 5x00 models to 2x00 models), your new storage array configuration will support lower numbers of some storage objects (for example, volumes) in the storage management software than your old configuration. You must make sure that your old configuration does not exceed the storage object limits.
See Hardware Universe for more information.
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Upgrade to newer models
If you are replacing the controllers to upgrade to a new model, keep in mind that your current storage array might have premium features installed that the new model cannot support.
When upgrading your E-Series controller, you should disable any premium features used on your storage array that are not supported on the new controllers.
Upgrade compatibility
Review the supported upgrade paths for each storage array model.
Upgrade path | Battery | Feature Support | SAS-3 shelves |
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From E2800 to E4000 |
Order a new battery. |
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E4000 controllers must use SAS-3 shelves. |
From E5700 to E4000 |
Order a new battery. |
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E4000 controllers must use SAS-3 shelves. |
Upgrade path | Battery | Feature Support | SAS-3 shelves |
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From EF600 to EF600 with a different Host Interface Card |
Reuse the old battery. |
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EF600 controllers must use SAS-3 shelves. |
From EF300 to EF600 |
Reuse the old battery. |
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EF600 controllers must use SAS-3 shelves. |
Upgrade path | Battery | Vendor ID | Feature Support | SAS-3 shelves |
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From E2x00 to E2x00 |
Reuse the old battery. |
Additional steps required. |
Legacy snapshots are not supported on the E2700. |
E2800 controllers must not be placed into SAS-2 shelves. |
From E2x00 to E5x00 |
Order a new battery. |
Additional steps are required when upgrading from E2600 to E5500 or E5600, or when upgrading from E2700 to E5400. |
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E5400, E5500, and E5600 controllers must not be placed into SAS-3 shelves. |
From E5x00 to E2x00 |
Order a new battery. |
Additional steps are required when upgrading from E5500 or E5600 to E2600, or when upgrading from E5400 to E2700. |
Legacy snapshots are not supported on the E2700. |
5400, E5500, and E5600 controllers must not be placed into SAS-3 shelves. |
From E5x00 to E5x00 |
Reuse the old battery. |
Additional steps required when upgrading from E5400 to E5500 or E5600. |
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E5400, E5500, and E5600 controllers must not be placed into SAS-3 shelves. |
From EF5x0 to EF5x0 |
Reuse the old battery. |
Additional steps required when upgrading from EF540 to EF550 or EF560. |
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EF540, EF550, and EF560 controllers must not be placed into SAS-3 shelves. |
SAS enclosures
The E5700 supports DE5600 and DE6600 SAS-2 enclosures via head upgrade. When a E5700 controller is installed in SAS-2 enclosures, support for base host ports is disabled.
SAS-2 shelves | SAS-3 shelves |
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SAS-2 shelves include the following models:
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SAS-3 shelves include the following models:
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Notes:
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EF600 and EF300 controllers can only use SAS-3 shelves as expansion.
SAS-2 to SAS-3 investment protection
You can reconfigure your SAS-2 system to be used behind a new SAS-3 controller shelf (E57XX/EF570/E28XX).
This procedure requires a Feature Product Variance Request (FPVR). To file an FPVR, contact your sales team. |