Synology DS1821 SNMP MIB Guide - Page 14

OID .13 Name spaceIONWrittenX Type Status Type Counter64 - Explanation The number of bytes written to this volume since boot .14 spaceUUID String - (64 bit VER.) The UUID of this volume Supported OS DSM, DSM UC DSM UC Synology FlashCache MIB (OID: .1.3.6.1.4.1.6574.103) The Synology FlashCache MIB monitors the resource usage of SSD cache. The collection frequency is 5 seconds. In order to directly access a specific OID, you must use ".1.3.6.1.4.1.6574.103.1.1" as a prefix since this MIB contains the relative table and entry number. For example, ".1.3.6.1.4.1.6574.103.1.1.2" can be used to get the name of the SSD on the flashcache that we are counting/checking. Note: The MIB is only suitable for the model which support SSD cache. Otherwise, it will return zero value for each OID path. OID .1 .2 .3 .4 .5 .6 .7 .8 .9 .10 .11 Table 3-14 FlashCache MIB Name flashCacheIndex Type Integer Status Explanation Type - Reference index for each observed flashCacheSSDDev String - device The SSD device name on flashcache we are counting/ flashCacheSpaceDev String - checking The space device name on flashcache we are counting/ flashCacheReadHits Counter64 - checking The number of flashCacheWriteHits Counter64 - reads on flashcache The number of flashCacheDiskRead Counter64 - writes on flashcache The number of flashCacheDiskWrite Counter64 - reads on disk The number of flashCacheTotalRead Counter64 - writes on disk The number of reads on volume flashCacheTotalWrite Counter64 - with flashcache The number of writes on volume flashCacheReadHitRate Integer - with flashcache The read hit rate of flashCacheWriteHitRate Integer - flashcache (%) The write hit rate of flashcache (%) Supported OS DSM, DSM UC DSM, DSM UC DSM, DSM UC DSM, DSM UC DSM, DSM UC DSM, DSM UC DSM, DSM UC DSM, DSM UC DSM, DSM UC DSM, DSM UC DSM, DSM UC Synology MIB files 13