Can the new 27" iMac Retina 5K display support two SSD's?I want to put in two SSD's in a 27" iMac Retina 5K (mid 2017)? I understand that such iMac has two different ports for two...
Réponse à : « What do you use in place of DiskWarrior to repair data for APFS? »There is a lot of misinformation and confusion on this topic. Currently, no utility can rebuild the directory of APFS disks on Mac. That includes DiskWarrior (the best in the repair arsenal), TechTool Pro (second choice) and Drive Genius (third choice). Worst of all, macOS versions above 10.12 Sierra re-format disks as APFS, so users are left in the cold. Apple should not do that!!! The reason is that Apple has not yet released documentation about how to write to such APFS disks, as they did about how to read them by September 2018 (after releasing macOS 10.14 Mojave; a year after releasing APFS for Mac and even before for iOS by March 2017!!!). • Some developers are clear about it in their web pages, like Prosoft Engineering: Drive Genius 5. Rebuild utilities are not supported on APFS. https://www.prosofteng.com/drive-genius-mac-protection-software++ • Micromat is misleading: TechTool Pro. In addition to native Mac drive formats, Mac OS Extended and APFS, Techtool Pro supports testing and repair of MS-DOS...
Réponse à : « Are you guys doing a teardown of this? »Great. What SSD model inside iMac Pro (4 TB) shows at "Apple - About This Mac - System Report - Hardware - Storage - Physical Drive - Device Name"? For instance, iMac 5K 27-inch shows "APPLE SSD SM2048L", which stands for SaMsung SSD 2,048 GB (2 TB). Thanks and Happy Christmas!
Réponse à : « Can the new 27" iMac Retina 5K display support two SSD's? »Surprising results for 27" iMac Retina 5K (mid 2017): TESTED: 2017 iMac 5K SSD Speed vs 2015 iMac 5K (Surprising Finding) Thus the 2017 iMac 5K is substantially slower for everyday tasks that involve intensive I/O with smaller reads, in spite of the 40% greater speed for large reads. <https://macperformanceguide.com/blog/201...-2017iMac5K-SSD.html> 2017 iMac 5K: Flash Drive (SSD) 2015 iMac 5K: writes at 1520 MiB/sec and reads at 2075 MiB/sec 2017 iMac 5K: writes at 2102 MiB/sec and reads at 2915 MiB/sec. <https://macperformanceguide.com/iMac5K_2...-flashDriveSSD.html> — That is less read speed than Samsung 960 PRO with sequential R/W (read/write) speeds up to 3,500/2,100 MB/s and random R/W speeds up to 440/360K IOPS, respectively.