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00:00:00 – 00:10:56
The video discusses important considerations when choosing disks for Network Attached Storage (NAS) systems, focusing on the differences between using enterprise disks and NAS-specific disks. It highlights the importance of reliability, capacity, and price to capacity ratios. The speaker explores technologies like Perpendicular Magnetic Recording (PMR) and Shingled Magnetic Recording (SMR), emphasizing how SMR can impact data consistency during large write operations. They caution against using SMR disks for NAS, especially in active RAID setups. Alternative options like Seagate's Iron Wolf Pro and Exos disks are suggested for NAS use. The video also covers aspects such as the impact of disk cache size on performance, the maximum number of drives per enclosure, and the importance of using compatible drive models for NAS systems. Overall, the speaker recommends Exos disks for their performance, warranty, scalability, and cost benefits, suggesting consistency in disk selection to avoid performance issues.
00:00:00
In this segment of the video, the speaker discusses the choice between using enterprise disks or NAS-specific disks for Network Attached Storage (NAS) systems. They share their experience with using different types of disks from brands like Western Digital and Seagate, highlighting the importance of reliability, capacity, and price to capacity ratios. The speaker specifically mentions their preference for Seagate over Western Digital due to issues with WD’s use of SMR drives. They explain the difference between perpendicular magnetic recording (PMR) and Shingled Magnetic Recording (SMR) technologies, emphasizing how SMR can impact data consistency and stability, especially during large writes like RAID rebuilds. The speaker suggests that while SMR may be suitable for smaller writes and lower frequencies to reduce costs, it can have limitations during large write operations.
00:03:00
In this segment of the video, the speaker discusses the impact of using larger disk caches on performance, particularly in the context of data writing to disks. They explain that while larger caches can help offset write performance impacts by allowing the disk to catch up from the fast cache, excessive large writes can fill up the cache leading to delays on disk I/O and performance degradation. The speaker mentions their experience with Western Digital (WD) Red disks transitioning from CMR to SMR technology, how WD actively hid this change, and WD’s response to the public backlash. They emphasize the importance of avoiding SMR disks for NAS use, especially in active RAID configurations. The speaker also briefly touches on Seagate’s Iron Wolf Pro and Exos disks as a good alternative for NAS use due to their performance and features.
00:06:00
In this segment of the video, the speaker discusses the recommendation for the maximum number of drives per enclosure, focusing on vibration management in large enclosures. They compare different drive options for home or small business enclosures, noting cost variations based on drive sizes and features. The discussion also touches on the cost per terabyte, the advantages of larger capacity drives for maximizing NAS capacity, and the cost comparison between Pro and Exos drives, highlighting that Exos drives are cheaper per terabyte. Considerations for compatibility with different NAS systems are also emphasized.
00:09:00
In this segment of the video, the speaker discusses supported drive models for a NAS system. While certain drives may not be on the official list, they may still work as long as they are compatible. The speaker mentions using an 18 Terabyte drive successfully on an older NAS. They recommend Exos disks over IronWolf or IronWolf Pro primarily due to performance, warranty, scale, and cost advantages. Consistency in using the same type of disk is suggested to avoid performance-related issues. The speaker plans to continue using Exos disks and thanks viewers for watching, encouraging likes, subscribes, and comments for further engagement.