# Homey Pro - Advertised Storage size **URL:** \ **Category:** Questions & Help\ **Tags:** homey-pro, homey-pro-2023\ **Created:** [May 2, 2023, 10:14am UTC](https://community.homey.app/t/homey-pro-advertised-storage-size/79966 "2023-05-02T10:14:28Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Glenn\_Dijkstra](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/glenn_dijkstra/32/17251_2.png) [@Glenn\_Dijkstra](https://community.homey.app/u/Glenn_Dijkstra)\ **Post date:** [May 2, 2023, 10:14am UTC](https://community.homey.app/t/homey-pro-advertised-storage-size/79966/1 "2023-05-02T10:14:28Z")
Hi there, I was wondering. Homey pro should have 8 gb internal storage, when I look into homey pro, it says like 2,7 gb memory and your app even says less. How can I interprete those values? ![Screenshot_20230502-083849_Homey](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/7/1/71f21b15d7ceedb17dabf35d6ff59777b884ae04.jpeg) ![Screenshot_20230502-121330_Homey](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/5/6/56de2393829448796e21c191a65206687c26d43e.jpeg) ---
**Author:** ![Sharkys](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/sharkys/32/54029_2.png) [@Sharkys](https://community.homey.app/u/Sharkys)\ **Post date:** [May 2, 2023, 10:32am UTC](https://community.homey.app/t/homey-pro-advertised-storage-size/79966/2 "2023-05-02T10:32:03Z")
> [@The new Homey Pro — Ask Me Anything](https://community.homey.app/t/the-new-homey-pro-ask-me-anything/70378/572): > > So the homey has multiple Partitions 2x Boot ~300mb 2x System ~2,3GB 1x User ~2,7GB In total ~8 GB Why this system? Currently, a Homey update is an image of the boot and system drives. Because you can’t write to the currently active partition, there are two boot and system drives, so the currently inactive partition can be updated. They switch the partitions from A to B after the upgrade, and then back to A after the next update. I don’t know if they will change the system to a different u… ---
**Author:** ![Dijker](https://avatars.discourse-cdn.com/v4/letter/d/b9bd4f/32.png) [@Dijker](https://community.homey.app/u/Dijker)\ **Post date:** [May 2, 2023, 3:43pm UTC](https://community.homey.app/t/homey-pro-advertised-storage-size/79966/3 "2023-05-02T15:43:03Z")
> moved to a dedicated topic as it has nothing to do with sysInternals ---
**Author:** ![Dijker](https://avatars.discourse-cdn.com/v4/letter/d/b9bd4f/32.png) [@Dijker](https://community.homey.app/u/Dijker)\ **Post date:** [May 2, 2023, 3:47pm UTC](https://community.homey.app/t/homey-pro-advertised-storage-size/79966/4 "2023-05-02T15:47:42Z")
This isn’t much difference with the previous model that also was sold with the installed capacity. And a lower unable capacity > **[Comparing the existing Homey Pro models](https://support.homey.app/hc/en-us/articles/360015447093-Comparing-the-existing-Homey-Pro-models-)** > > Over the past couple of years, we've developed multiple generations and models of Homey. Because of a shift in demand, we've also shifted production away from the regular Homey to focus on our best... ---
**Author:** ![Peter\_Kawa](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_kawa/32/173848_2.png) [@Peter\_Kawa](https://community.homey.app/u/Peter_Kawa)\ **Post date:** [May 2, 2023, 4:05pm UTC](https://community.homey.app/t/homey-pro-advertised-storage-size/79966/5 "2023-05-02T16:05:22Z")
> [@Dijker](#): > > as it has nothing to do with sysInternals A bit though, while one of the Q’s was: How come Athom/Homey sysinfo show “2700MB” total diskspace, but SysInternals shows “2535MB” Can it be because of different calculation methods? What is the “real” number? ---
**Author:** ![Dijker](https://avatars.discourse-cdn.com/v4/letter/d/b9bd4f/32.png) [@Dijker](https://community.homey.app/u/Dijker)\ **Post date:** [May 2, 2023, 7:13pm UTC](https://community.homey.app/t/homey-pro-advertised-storage-size/79966/6 "2023-05-02T19:13:33Z")
> [@Peter\_Kawa](#): > > A bit though, while one of the Q’s was: > How come Athom/Homey sysinfo Ah, sorry You are right, I reacted on the 8 GB vs 2,x GB usable… > [@Peter\_Kawa](#): > > show “2700MB” total diskspace No, it doesn’t say 2700 MB, it says 2,7 GB Actually it is: ```auto Homey.system.getStorageInfo(); Response "root":{4 items "total":float 2657828864 ``` Athom makes=\> 2657828864 bytes / 1000³ =\> 2,657 GB rounded to =\> 2,7 GB (Pronounce GigaByte) And Sorry, maybe I am old and from before 1998 ¹ in computers, I still use/write MB where I calculate it the way I learned in school: 2657828864 / 1024² = 2534.7 =\> Rounded to 2535 [MiB to be correct](https://en.wikipedia.org/wiki/Byte#Multiple-byte_units) Pronounce mebiByte But to make it even more complex, where I apply the (older) JEDEC standard for calculation that is more and more replaced by the storage vendors by the IEC standard, this older JEDEC standard (based on powers of 2) is still used for Memory… a MB is there 1048576 (i.e., 2²⁰) Bytes > **¹**. [National Institute of Standards and Technology](https://en.wikipedia.org/wiki/National_Institute_of_Standards_and_Technology). [“Prefixes for binary multiples”](http://physics.nist.gov/cuu/Units/binary.html). [Archived](https://web.archive.org/web/20070808000831/http://physics.nist.gov/cuu/Units/binary.html) from the original on 2007-08-08. “In December 1998 the [International Electrotechnical Commission](https://en.wikipedia.org/wiki/International_Electrotechnical_Commission) (IEC) […] approved as an IEC International Standard names and symbols for prefixes for binary multiples for use in the fields of data processing and data transmission.”