User manual HP STORAGEWORKS 2120 DISK SYSTEM

[. . . ] HP StorageWorks Disk System 2120 User's Guide Edition E0305 Order No. 5697-5367 Printed in U. S. A. Notice © Hewlett-Packard Company, 2004-2005. Hewlett-Packard Company makes no warranty of any kind with regard to this document, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Hewlett-Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material. [. . . ] When the Disk Drive LED off, the disk module is either idle or completely off (see Table 1 on page 8). In this state, it is safe to remove the disk module. 20 HP StorageWorks Disk System 2120 2 Prepare the software environment to remove the drive. See your operating system documentation for instructions and procedures required to remove a disk module. It may be necessary to unmount file systems associated with the disk drives installed in the disk system. 3 Unlatch the disk module handle and remove the disk module. Squeeze the latch to unlock the disk module. Put a finger behind the latch and pull the disk module out until it disengages from the backplane. Leave it in its slot for two to three minutes to allow the disk drive to spin down before removing the disk module from the enclosure. If you are going to replace the disk module immediately, refer to "Replace a Disk Module" below. If you are not going to replace the disk module immediately insert a filler panel into the open slot to assure the required cooling. Replace a Disk Module 1 Refer to your operating system documentation for requirements and procedures for replacing disk modules. 2 Align the replacement disk module with the disk module slot. 3 Slide the disk module into the slot until it engages with the backplane. 4 Press on the locking handle until it locks. You will hear an audible click when the locking mechanism is fully engaged. HP StorageWorks Disk System 2120 21 Remove the Disk System English CAUTION Some data paths may be slot-dependent. Be sure to note the slot from which the disk module is removed so it can be installed in the same slot in the replacement disk system. Reverse the installation instructions enclosed with the rackmount kit for your cabinet: A7552A - Hewlett-Packard Rack Systems/E for Enterprise Systems A5680A - all other Hewlett-Packard rack systems for Enterprise Systems purchased before November 1998. If your disk system is a factory-integrated unit, see the figure below for removal instructions. FIGURE 12 Removing the Disk System If you are exchanging a desktop disk system, be sure to remove and store the plastic Desktop Disk System Cover for use on the replacement disk system. 22 HP StorageWorks Disk System 2120 Setting Up the Hardware Event Monitor (HP-UX Only) Hardware event monitors run on HP-UX hosts, versions 10. 20 and later. The Disk Monitor (disk_em) monitors all disks bound to sdisk drivers. Consequently, if the Disk Monitor is active on your host, it is already set up to monitor the disks of a new disk system. If you need to install or activate the Disk Monitor, refer to the EMS Hardware Monitors User's Guide in the latest IPR Support Media or on the Web (http://www. docs. hp. com/hpux/diag/). Note This Disk Monitor should not be confused with the EMS disk monitor that is used to monitor LVM resources. The way you configure the monitor determines, among other things, where event messages will be sent and what level of severity will be reported. Configuration Overview The following steps will help you identify and resolve disk system failures: 1 Gather information from all sources: ­ Hardware event notifications (page 25) ­ Disk system LED status (page 25) ­ Online information tools (page 26) 2 Isolate the cause of the problem (Table 7 on page 30). (See page 19 for disk module removal and replacement. ) 4 Verify operational status with ioscan or other host utilities. HP StorageWorks Disk System 2120 23 Event Notification (HP-UX Only) The Disk Monitor, an EMS hardware event monitor, reports changes in disk status. Depending on how the monitor is set up, it sends messages to the console, an e-mail address, a log file, or a third-party application. These messages give early notice of a disk problem. Events include media errors, failed read and write attempts, invalid commands, changed operating parameters, failed diagnostics, and many others. Event severity ranges from critical to informational: Critical An event that causes data loss, host system downtime, or other loss of service. Host system operation will be affected if the disk system continues to be used without correction. For example, read data could not be recovered. An event that may cause data loss, host system downtime, or other loss of service if left uncorrected. [. . . ] A7528A1 73-GB 10, 000 rpm HDD U320 disk mod. A7529A1 73-GB 15, 000 rpm HDD U320 disk mod. A7530A1 146-GB 10, 000 rpm HDD U320 disk mod. Desktop Disk System Cover Desktop Disk System Feet 1 The U320 drives are supported at 160 MB/s speeds only. [. . . ]