User manual ACRONIS DRIVE MONITOR

[. . . ] Acronis® Drive Monitor User's Guide Copyright © Acronis, Inc. , 2000-2010. "Acronis" and "Acronis Secure Zone" are registered trademarks of Acronis, Inc. "Acronis Compute with Confidence", "Acronis Startup Recovery Manager", "Acronis Active Restore" and the Acronis logo are trademarks of Acronis, Inc. VMware and VMware Ready are trademarks and/or registered trademarks of VMware, Inc. [. . . ] Right-click a parameter and select one of the menu items: Knowledge base. . . parameter; Copy entire page to clipboard - select this item in case you need to copy and save displayed information; Ignore parameter - select this item to disable parameter-specific error messages, though the parameter still will be monitored and its values will be displayed in gray. It is not recommended to use this feature for critical parameters; Reset to default - select this item to cancel all changes you have made before (ignored parameters, changed Raw offset values). 3. 2. 3 Events The Events tab contains a table with event logs. Double click will open a window with the detailed information on the event. 3. 2. 4 Health calculating Why calculating a disk's health status? The calculated hard drive's health shown as percentage provides you a better visual representation of S. M. A. R. T. related problems A health status warns you of a disk degradation, when S. M. A. R. T. reports a problem This will help you to protect your data before your disk's failure. How to calculate a disk's health? Critical parameters: Initially a hard disk has 100% health condition. parameters considered by Acronis Drive Monitor as critical for a hard drive (if they are available for monitoring, it depends on the manufacturer), decrease the health of your disk. Such attributes have a predefined weight and a maximum limit value (see a Table 1 below). A limit defines how much the attribute may decrease an overall health value. A weight of an attribute defines how important the parameter's value decreasing affects the disk's health. The overall disk health is calculated by a formula below: Disk health (%) = (100% - (min(limit, attribute_value*Weight))) where: 100% - an initial health of a disk; - the product of minimums from (limit, attribute_value*Weight) - calculated for each critical S. M. A. R. T. parameter (see a Table 1 below); limit - a limit of each critical S. M. A. R. T. parameter (see a Table 1 below); attribute_value - a current parameter's value. Example: 1. Soft Read Error Rate = 30 (attribute value), weight = 1, limit = 20; 2. So in this case the disk's health is calculated as the following: Disk health =(100% ­ (min(30*1, 20))) * (100-min(12*2, 50))) = 80%*76%=60. 8% 61% The following table contains the health related (critical) S. M. A. R. T. attributes affecting the health value with their weights and maximum limits. attribute 05 10 184 196 197 198 201 Reallocated Sectors Count Spin Retry Count End-to-End Error Reallocation Event Count Current Pending Sectors Count Weight 2 2 1 1 1 Limit % 70 50 50 40 40 70 20 Off-Line Uncorrectable Sectors Count 2 Soft Read Error Rate 1 Not critical parameters: Other S. M. A. R. T. parameters, which have a predefined by manufacturer Threshold value, also affect a disk's health: after decreasing below the threshold, this parameter subtracts 10% from the current disk health. Table 2. Attribute ID 01 02 03 04 07 08 09 12 221 228 225 194 199 193 S. M. A. R. T. attribute Raw Read Error Rate Throughput Performance Spin Up Time Start/Stop Count Seek Error Rate Seek Time Performance Power-On Time Count Drive Power Cycle Count G-sense Error Rate Power off Retract Cycle Load/Unload Cycle Count Disk Temperature Ultra ATA CRC Error Count Load/Unload Retry Count What else may decrease a disk's health? When a disk is monitored using a custom script: exit code is 0 : Health = (disk health calculated by S. M. A. R. T. ) * 100% exit code is 1 (warning) : Health = (disk health calculated by S. M. A. R. T. ) * 50% exit code is 2+ : Health = 0% Decreasing value of a non-critical parameter does not affect the disk health till it is above a threshold, specified by the disk's manufacturer; Event log entries also do not change the overall disk health, but still can generate Warnings or Errors. Factors not affecting a disk health 3. 2. 5 Using custom script If any of your hard drives does not support S. M. A. R. T. 21) page you may select a required script for a drive in a Disk monitoring (p. The executable's output will be returned through the exit code and recorded to the respective log entry. [. . . ] A user name and a password might also be needed if the SMTP server requires user authentication. If the outgoing SMTP server requires logging on to an incoming mail server before it allows sending outgoing messages, enter the necessary information for the incoming mail server. Select Use encryption check box and select a cryptographic protocol for the safer communication over the network (SSL or TLS). After setting up e-mail notifications, you can send a test mail message by clicking the appropriate button. Click OK to save changes and return to the Options page. 3. 5. 1. 2 Regular reports schedule You can specify a schedule for regular disk status reports. Such report contains all information on your disks, including a monitoring mode, health, temperature, S. M. A. R. T. [. . . ]