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In my study(level compcation style), I define the lifetim of SSTable as the time interval between two compactions.
### definition
For example, the first compaction output the **sst1**, and the t…
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Running the `fio_zone_write` benchmark on a conventional disk fails with `fio-3.16`. It works fine with `fio-3.28`. We should check the version of `fio` before executing the benchmark command.
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> Zonefs파일시스템에서 어떤 방법을 통해 zone을 관리하는지를 알아보기 위해 마운트가 필요.
## 1. Zonefs?
ZBD에 POSIX파일 시스템 인터페이스를 매핑하기 위한 파일시스템
+ https://www.usenix.org/system/files/vault20_slides_moal.pdf _(이해를 위해 리눅스 큰 성님들의 자…
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### 목표
1. User space가 Lagacy Application인 시스템에서 device mapper를 이용해 ZNS ssd에 write.
2. device mapper를 이용해 리눅스 컨테이너(LxC)에서 발생하는 I/O를 zns ssd에 write.
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**1. 현지 시스템 상에 파일 시스템이 갖춰지지 않고 마운트 되지 않…
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Hello all :)
As discussed in the last 'OpenEBS Community Sync-up' I am describing the requirements of a zoned storage feature in Mayastor here.
## Overview
Zoned storage is a class of storage t…
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Reporting an unusual situation. Have ZFS mirror array across two 1TB SSDs. It regularly spews "Unaligned write command" errors. From reading reports here and elsewhere, this problem used to exist, was…
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Hi, FEMU. Thank you for the great environment to research the storage devices.
I want to know what make a difference between these two environments (in emulating ZNS).
1. FEMU-emulated ZNS
2.…
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Hello, I'm a newbie to ZNS and the file system. I have two questions for zonefs:
1. how are data written to a zone? Does zonefs use vfs_write or any other write function provided by Linux?
2. I di…
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Hi,
I'm trying to build the latest nvme-cli on Debian 9, but I have the following errors when building subproject `libnvme`
```
Reason: subprojects/libnvme/libnvme/meson.build:29: Include directo…
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Hi zenfs,
We are considering use ZNS to refactor our storage system, after doing some research we found a fundamental limitation which posed by the NVMe ZNS Active/Open zone count(Maximum Active Re…