Dell PowerVault 211S (SCSI) - Manual (Page 29)

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To safeguard your system before installing or maintaining your storage system, see
Appendix B, "Maintaining Your Storage System," for information about scheduling
backups, backup devices, cleaning storage system components, environmental fac-
tors, and power protection devices.
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If at any time you don't understand a procedure described in this guide, or if your stor-
age system does not perform as expected, Dell provides a number of tools to help
you. For more information on these help tools, see Chapter 8, "Getting Help."