---
title: "Cache Volume History"
slug: "cache-volume-history"
updated: 2022-11-09T10:11:05Z
published: 2022-11-09T10:11:05Z
canonical: "docs.zetaly.io/cache-volume-history"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.zetaly.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Cache Volume History

Stored in cacheVolumes Comes from [cacheDataUnique](/v1/docs/smf-74-5-cache-subsystem-device-activity) **and** [cfgVolDataWork](/v1/docs/smf-74-subtype-4-coupling-facility-activity) on storageArray, tag, volser, cacheDataUnique.seconds > 0, cfgVolDataWork.manufacture = 'EMC' and cfgVolDataWork.storageGroup is not null

| DB Column name | Aggregation Function | FROM DB Column name | Configurable | In GROUPBY | Description |
| --- | --- | --- | --- | --- | --- |
| scope | scope |  |  |  |  |
| startTime | MIN | cacheDataUnique |  | X |  |
| endTime | MAX | cacheDataUnique |  |  |  |
| seconds | MAX | cacheDataUnique |  |  |  |
| volser |  | cacheDataUnique |  | X |  |
| storageGroup |  | cfgVolDataWork |  | X |  |
| storageArray |  | cacheDataUnique |  | X |  |
| ssid |  | cacheDataUnique |  | X |  |
| typeNum |  | cfgVolDataWork |  | X |  |
| modelNum |  | cfgVolDataWork |  | X |  |
| manufacture |  | cfgVolDataWork |  | X |  |
| plant |  | cfgVolDataWork |  | X |  |
| seqNum |  | cfgVolDataWork |  | X |  |
| tag |  | cacheDataUnique |  | X |  |
| volCapacityGb | SUM | cfgVolDataWork.cylinders |  |  | $\frac{cylinders*830.04}{1024*1024}$ |
| cylinders | SUM | cfgVolDataWork |  |  |  |
| beRead | SUM | cacheDataUnique.phyRead cacheDataUnique.seqRead cacheDataUnique.cacheRead cacheDataUnique.byteRead cacheDataUnique.cacheReadHit |  |  | **IBM Mode** SUM(phyRead) **EMC Mode** $\frac{SUM(seqRead)}{SUM(seqRead+cacheRead)}*SUM(byteRead) / 54 + SUM(cacheRead-cacheReadHit)$ |
| beWrite | SUM | cacheDataUnique.phyWrite cacheDataUnique.seqWrite cacheDataUnique.cacheWrite cacheDataUnique.byteWrite |  |  | **IBM Mode** SUM(phyWrite) **EMC Mode** $\frac{SUM(seqWrite)}{SUM(seqWrite+cacheWrite)}*SUM(byteWrite) / 108 + SUM(cacheWrite)*0.4$ |
| beReadKb | SUM | cacheDataUnique.byteRead |  |  |  |
| beWriteKb | SUM | cacheDataUnique.byteWrite |  |  |  |
| beReadTime | SUM | cacheDataUnique.phyReadRt |  |  |  |
| beWriteTime | SUM | cacheDataUnique.phyWriteRt |  |  |  |
| cacheRead | SUM | cacheDataUnique |  |  |  |
| cacheReadHit | SUM | cacheDataUnique |  |  |  |
| cacheWrite | SUM | cacheDataUnique |  |  |  |
| cacheWriteHit | SUM | cacheDataUnique |  |  |  |
| cacheInhibit | SUM | cacheDataUnique |  |  |  |
| cacheBypass | SUM | cacheDataUnique |  |  |  |
| seqRead | SUM | cacheDataUnique |  |  |  |
| seqReadHit | SUM | cacheDataUnique |  |  |  |
| seqWrite | SUM | cacheDataUnique |  |  |  |
| seqWriteHit | SUM | cacheDataUnique |  |  |  |
| phyRead | SUM | cacheDataUnique |  |  |  |
| phyWrite | SUM | cacheDataUnique |  |  |  |
| phyReadByte | SUM | cacheDataUnique |  |  |  |
| phyWriteByte | SUM | cacheDataUnique |  |  |  |
| phyReadRt | SUM | cacheDataUnique |  |  |  |
| phyWriteRt | SUM | cacheDataUnique |  |  |  |
| byteRead | SUM | cacheDataUnique |  |  |  |
| byteWrite | SUM | cacheDataUnique |  |  |  |
| byteReadRt | SUM | cacheDataUnique |  |  |  |
| byteWriteRt | SUM | cacheDataUnique |  |  |  |
| nretRead | SUM | cacheDataUnique |  |  |  |
| nretReadHit | SUM | cacheDataUnique |  |  |  |
| nretWrite | SUM | cacheDataUnique |  |  |  |
| nretWriteHit | SUM | cacheDataUnique |  |  |  |
| xfrSeqDasd | SUM | cacheDataUnique |  |  |  |
| xfrNormDasd | SUM | cacheDataUnique |  |  |  |
| xfrCacheDasd | SUM | cacheDataUnique |  |  |  |
| fwBypass | SUM | cacheDataUnique |  |  |  |
| fwCache | SUM | cacheDataUnique |  |  |  |
| fwSeq | SUM | cacheDataUnique |  |  |  |
| recCacheMiss | SUM | cacheDataUnique |  |  |  |
| recCacheWrPro | SUM | cacheDataUnique |  |  |  |
| recModeRead | SUM | cacheDataUnique |  |  |  |
| ckdWrite | SUM | cacheDataUnique |  |  |  |
| ckdWriteHit | SUM | cacheDataUnique |  |  |  |
| cfwBypass | SUM | cacheDataUnique |  |  |  |
| lowIntRt | SUM | cacheDataUnique |  |  |  |
| zhpfRead | SUM | cacheDataUnique |  |  |  |
| zhpfWrite | SUM | cacheDataUnique |  |  |  |
| xrcRead | SUM | cacheDataUnique |  |  |  |
| xrcWrite | SUM | cacheDataUnique |  |  |  |
| pprcTrack | SUM | cacheDataUnique |  |  |  |
| actionId |  | cacheDataUnique |  |  |  |
| cec_name |  | cacheDataUnique |  | X |  |
| cec_model |  | cacheDataUnique |  | X |  |
| cec_type |  | cacheDataUnique |  | X |  |
| lpar_name |  | cacheDataUnique |  | X |  |