U kopile ho bonts'a mehlala ea 'nete ea ho sebelisa li-drive tsa rona tsa SSD le liteko tsa profeshenale. Re u fa tlhaloso e qaqileng ea li-drive tsa rona tsa SSD ho tsoa ho balekane ba rona ba Truesystems. Litsebi tsa Truesystems li ile tsa bokella seva ea 'nete' me tsa etsisa mathata a 'nete ao li-SSD tsohle tsa maemo a khoebo li tobanang le ona. A re bone hore na ba tlile ka eng!
Sehlopha sa 2019 sa Kingston
Ntlha ea pele, khopolo e nyenyane e omeletseng. Li-SSD tsohle tsa Kingston li ka aroloa ka lihlopha tse 'ne tse kholo. Karohano ena e na le maemo, kaha likoloi tse tšoanang li oela malapeng a 'maloa ka nako e le' ngoe.
- SATA SSD ka 2,5 ″, M.2 le mSATA li etsa lintlha tsa Kingston UV500 le mefuta e 'meli ea li-drive tse nang le NVMe interface - Kingston A1000 le Kingston KC2000;
- . Mefuta e tšoanang le ea sehlopha se fetileng mme, ho phaella moo, SATA SSD Kingston A400;
- : UV500 le KC2000;
- . Li-drive tsa DC500, tse ileng tsa fetoha mohale oa tlhahlobo ena. Mohala oa DC500 o arotsoe ka DC500R ('malo oa mantlha, 0,5 DWPD) le DC500M (moroalo o tsoakiloeng, 1,3 DWPD).
Tekong, Truesystems e ne e e-na le Kingston DC500R e nang le bokhoni ba 960 GB le Kingston DC500M e nang le 1920 GB ea memori. A re hopoleng mehopolo ea rona ka litšobotsi tsa bona:
Kingston DC500R
- Bolumo: 480, 960, 1920, 3840 GB
- Boemo ba sebopeho: 2,5 ″, bophahamo 7 mm
- Sebopeho: SATA 3.0, 6 Gbit/s
- Ts'ebetso e batloang (960 GB ea mohlala)
- Ho fihlella ka tatellano: bala - 555 MB / s, ngola - 525 MB / s
- Ho fihlella ka tšohanyetso (4 KB block): bala - 98 IOPS, ngola - 000 IOPS
- QoS latency (4 KB block, QD=1, 99,9 percentile): bala - 500 µs, ngola - 2 ms
- Boholo ba karolo e etsisitsoeng: 512 byte (ea utloahalang/ea 'mele)
- Mohloli: 0,5 DWPD
- Nako ea tiiso: lilemo tse 5
Kingston DC500M
- Bolumo: 480, 960, 1920, 3840 GB
- Boemo ba sebopeho: 2,5 ″, bophahamo 7 mm
- Sebopeho: SATA 3.0, 6 Gbit/s
- Ts'ebetso e batloang (1920 GB ea mohlala)
- Ho fihlella ka tatellano: bala - 555 MB / s, ngola - 520 MB / s
- Ho fihlella ka tšohanyetso (4 KB block): bala - 98 IOPS, ngola - 000 IOPS
- QoS latency (4 KB block, QD=1, 99,9 percentile): bala - 500 µs, ngola - 2 ms
- Boholo ba karolo e etsisitsoeng: 512 byte (ea utloahalang/ea 'mele)
- Mohloli: 1,3 DWPD
- Nako ea tiiso: lilemo tse 5
Litsebi tsa Truesystems li hlokometse hore li-drive tsa Kingston li bonts'a boleng ba QoS ba latency eohle e le boleng bo phahameng ba peresente ea 99,9% (99,9% ea boleng bohle e tla ba tlase ho boleng bo boletsoeng). Ena ke pontšo ea bohlokoa haholo bakeng sa li-drive tsa seva, kaha ts'ebetso ea tsona e hloka ho tseba esale pele, botsitso le ho ba sieo ha lihatsetsi tse sa lebelloang. Haeba u tseba hore na ho lieha ha QoS ho hlalositsoe ho tlhaloso ea koloi, u ka bolela esale pele ts'ebetso ea eona, e leng bonolo haholo.
Litekanyetso tsa liteko
Li-drive ka bobeli li ile tsa lekoa bencheng ea liteko e etsisang seva. Litšobotsi tsa eona:
- Intel Xeon Processor E5-2620 V4 (8 cores, 2,1 GHz, HT e lumelletsoe)
- Memori ea 32 GB
- Supermicro X10SRi-F motherboard (1x socket R3, Intel C612)
- CentOS Linux 7.6.1810
- Ho hlahisa mojaro, mofuta oa FIO 3.14 o sebelisitsoe
Hape hape mabapi le hore na li-drive tsa SSD li ile tsa lekoa:
- Kingston DC500R 960 GB (SEDC500R960G)
- Firmware: SCEKJ2.3
- Bolumo: 960 byte
- Kingston DC500M 1920 GB (SEDC500M1920G)
- Firmware: SCEKJ2.3
- Объём: 1 920 383 410 176 байт
Mokhoa oa ho Leka
E ipapisitse le sehlopha se tsebahalang sa liteko Leha ho le joalo, bahlahlobi ba ile ba etsa liphetoho ho eona ho etsa hore meroalo e atamele ts'ebeliso ea 'nete ea li-SSD tsa khoebo ka 2019. Tlhalosong ea teko ka 'ngoe, re tla hlokomela hore na hantle-ntle ke eng e ileng ea fetoloa le hore na ke hobane'ng.
Teko ea Ts'ebetso ea ho Kena/Se hlahisoang (IOPS)
Teko ena e lekanya IOPS bakeng sa boholo ba boloko bo fapaneng (1024 KB, 128 KB, 64 KB, 32 KB, 16 KB, 8 KB, 4 KB, 0,5 KB) le phihlello e sa reroang e nang le likarolo tse fapaneng tsa ho bala/ho bala. rekoto (100/0 , 95/5, 65/35, 50/50, 35/65, 5/95, 0/100). Litsebi tsa Truesystems li sebelisitse litekanyo tse latelang tsa tlhahlobo: likhoele tse 16 tse nang le botebo ba queue ea 8. Ka nako e ts'oanang, 0,5 KB block (512 bytes) e ne e sa tsamaisoa ho hang, kaha boholo ba eona bo nyane haholo hore bo ka kenya li-drive ka botebo.
Kingston DC500R tekong ea IOPS
Lintlha tsa tafole:
Kingston DC500M tekong ea IOPS
Lintlha tsa tafole:
Teko ea IOPS ha e bolele ho fihlella mokhoa oa ho tlala, kahoo ho bonolo ho feta. Li-drive ka bobeli li sebelitse hantle, li tsamaellana ka botlalo le litlhaloso tsa feme e boletsoeng. Lithuto tsa liteko li bonts'itse ts'ebetso e ntle haholo ka ho ngola ka li-blocks tsa 4 KB: 70 le 88 tse likete tsa IOPS. Sena se setle, haholo bakeng sa Kingston DC500R e shebaneng le ho bala. Ha e le ts'ebetso ea ho bala ka botsona, li-drive tsena tsa SSD ha li fete feela boleng ba feme, empa hape ka kakaretso li atamela siling ea ts'ebetso ea sebopeho sa SATA.
Teko ea Bandwidth
Teko ena e hlahloba tatellano ea liphetho. Ka mantsoe a mang, li-drive tsa SSD ka bobeli li etsa ts'ebetso e latellanang ea ho bala le ho ngola ho 1 MB le 128 KB blocks. Likhoele tse 8 ka botebo ba mola oa 16 ka khoele.
Kingston DC500R:
- 128 KB tatelano bala: 539,81 MB/s
- 128 KB ngola ka tatellano: 416,16 MB/s
- 1 MB e bala ka tatellano: 539,98 MB/s
- 1 MB ho ngola ka tatellano: 425,18 MB/s
Kingston DC500M:
- 128 KB tatelano bala: 539,27 MB/s
- 128 KB ngola ka tatellano: 518,97 MB/s
- 1 MB e bala ka tatellano: 539,44 MB/s
- 1 MB ho ngola ka tatellano: 518,48 MB/s
'Me mona re boetse re bona hore lebelo la ho bala ka tatellano ea SSD e atametse moeli oa ho fetisa oa SATA 3. Ka kakaretso, likoloi tsa Kingston ha li bontše mathata leha e le afe ka ho bala ka tatellano.
Ho ngola ka tatellano ho lieha hanyane, ho totobetseng ka ho khetheha ho Kingston DC500R, e leng ea sehlopha se balang haholo, ke hore, se etselitsoe ho bala ka matla. Ka hona, Kingston DC500R karolong ena ea tlhahlobo e hlahisitse boleng bo tlase ho feta bo boletsoeng. Empa litsebi tsa Truesystems li lumela hore bakeng sa koloi e sa etsoang bakeng sa meroalo e joalo ho hang (hopola hore DC500R e na le mohloli oa 0,5 DWPD), tsena 400-plus MB / s li ntse li ka nkoa e le sephetho se setle.
Teko ea ho lieha ha nako
Joalokaha re se re hlokometse, ena ke teko ea bohlokoa ka ho fetisisa bakeng sa likoloi tsa khoebo. Ntle le moo, e ka sebelisoa ho fumana hore na ke mathata afe a hlahang nakong ea ts'ebeliso ea nako e telele ea letsatsi le letsatsi ea drive ea SSD. Teko e tlwaelehileng ya SNIA PTS e lekanya palohare le boholo ba latency ya boloko ba boholo bo fapaneng (8 KB, 4 KB, 0,5 KB) le ho bala/ho ngola karolelano (100/0, 65/35, 0/100) bonyane ba botebo ba mola (1 khoele e nang le QD=1). Leha ho le joalo, bahlophisi ba Truesystems ba nkile qeto ea ho e fetola ka botebo ho fumana boleng ba nnete:
- E sa kenyelletsoeng thibela 0,5 KB;
- Ho e-na le mojaro o nang le khoele e le 'ngoe e nang le mela ea 1 le ea 32, mojaro o fapana ka palo ea likhoele (1, 2, 4) le botebo ba mela (1, 2, 4, 8, 16, 32);
- Ho e-na le karo-karolelano ea 65/35, ho sebelisoa 70/30 kaha ke ntho ea sebele;
- Ha ho fanoe feela ka litekanyetso tse tloaelehileng le tse phahameng, empa le liperesente tsa 99%, 99,9%;
- bakeng sa boleng bo khethiloeng ba palo ea likhoele, li-graph tsa latency (99%, 99,9% le karolelano ea boleng) li reriloe khahlanong le IOPS bakeng sa li-blocks tsohle le ho bala / ho ngola likarohano.
Lintlha li ne li lekantsoe ka makhetlo a mane ho tse 25 tse tšoarellang metsotsoana ea 35 (5 warm-up + 30-second load) ka 'ngoe. Bakeng sa li-graph, bahlophisi ba Truesystems ba khethile letoto la litekanyetso tse nang le botebo ba mela ho tloha ho 1 ho isa ho 32 ka likhoele tse 1-4. Sena se entsoe e le ho lekola ts'ebetso ea li-drive ho latela latency, ke hore, sesupo sa nnete.
Karolelano ea metrics ea latency:
Kerafo ena e bontša ka ho hlaka phapang lipakeng tsa DC500R le DC500M. Kingston DC500R e etselitsoe ts'ebetso e matla ea ho bala, kahoo palo ea ts'ebetso ea ho ngola ha e eketsehe ka mojaro o ntseng o eketseha, o setseng ho 25.
Haeba u sheba mojaro o tsoakiloeng (70% ngola le 30% bala), phapang pakeng tsa DC500R le DC500M le eona e ntse e bonahala. Haeba re nka mojaro o tsamaellanang le latency ea 400 microseconds, re ka bona hore DC500M ea sepheo se akaretsang e na le ts'ebetso ka makhetlo a mararo. Sena le sona ke sa tlhaho 'me se bakoa ke litšobotsi tsa li-drive.
Lintlha tse khahlisang ke hore DC500M e feta DC500R leha e baloa ka 100%, e fana ka latency e tlase bakeng sa palo e lekanang ea IOPS. Phapang e nyane, empa e thahasellisa haholo.
99% latency percentile:
99.9% latency percentile:
Ho sebelisa li-graph tsena, litsebi tsa Truesystems li ile tsa hlahloba ho tšepahala ha litšobotsi tse phatlalalitsoeng bakeng sa latency ea QoS. Litlhaloso li bonts'itse 0,5 ms bala le 2 ms ngola bakeng sa boloko ba 4 KB ka botebo ba mokoloko oa 1. Re motlotlo ho tlaleha hore lipalo tsena li tiisitsoe, 'me li na le moeli o moholo. Hoa thahasellisa hore bonyane ho lieha ho bala (280-290 μs bakeng sa DC500R le 250-260 μs bakeng sa DC500M) ha e fihleloe ka QD=1, empa ka 2-4.
Ho ngola latency ho QD = 1 e ne e le 50 μs (mofuta o joalo o tlaase o fumanoa ka lebaka la hore ha ho le boima bo tlaase cache ea koloi e tiisetsoa hore e na le nako ea ho lokolla, 'me kamehla re bona ho lieha ha re ngolla cache). Palo ena e tlase ka makhetlo a 40 ho feta boleng bo boletsoeng!
Teko e Tsoelang Pele ea Ts'ebetso
Teko e 'ngoe ea sebele e hlahlobang liphetoho tsa ts'ebetso (IOPS le latency) nakong ea mosebetsi o molelele o matla. Boemo bo sebetsang ke ho rekota ka tšohanyetso ka li-block tsa 4 KB ka metsotso e 600. Ntlha ea teko ena ke hore tlas'a mojaro o joalo, SSD drive e kena ka mokhoa oa saturation, ha molaoli a ntse a tsoela pele ho bokella lithōle ho lokisa li-block blocks bakeng sa ho ngola. Ka mantsoe a mang, ona ke mokhoa o khathatsang ka ho fetesisa - hantle seo li-SSD tsa maemo a khoebo li fumanehang ho li-server tsa 'nete.
Ho ipapisitsoe le liphetho tsa liteko, Truesystems e fumane matšoao a latelang a ts'ebetso:
Sephetho se ka sehloohong sa karolo ena ea teko: bobeli ba Kingston DC500R le Kingston DC500M ts'ebetsong ea sebele ba feta litekanyetso tsa bona tsa fektheri. Ha li-blocks tse lokiselitsoeng li fela, mokhoa oa saturation o qala, Kingston DC500R e sala ho 22 IOPS (ho e-na le 000 IOPS). Kingston DC20M e lula sebakeng sa 000-500, le hoja setšoantšo sa koloi se bolela 77 IOPS. Teko ena e boetse e bontša ka ho hlaka phapang lipakeng tsa li-drive: haeba ts'ebetso ea ts'ebetso ea drive e kenyelletsa karolo e phahameng ea ts'ebetso ea ho ngola, Kingston DC78M e hlahisa tlhahiso e fetang makhetlo a mararo (re hopola hape hore DC000M e bonts'itse latency e ntle ts'ebetsong ea ho bala. ).
Latencies nakong ea ts'ebetso ea ho ngola e phehellang e hlophisitsoe ka graph e latelang. Median, 99%, 99,9% le 99,99% percentiles.
Rea bona hore latency ea li-drive ka bobeli e eketseha ka tekanyo ea ho fokotseha ha ts'ebetso, ntle le li-dips tse bohale kapa litlhōrō tse ke keng tsa hlalosoa. Sena se setle haholo, kaha ho tseba esale pele ke sona hantle se lebelletsoeng ho tsoa ho li-drive tsa likhoebo. Litsebi tsa Truesystems li hatisa hore liteko li etsahetse ka likhoele tse 8 tse nang le botebo ba 16 ka khoele ka 'ngoe, ka hona, ha se litekanyetso tse felletseng tse bohlokoa, empa ke matla. Ha ba lekola DC400, ho bile le tieho e kholo tekong ena ka lebaka la ts'ebetso ea molaoli, empa setšoantšong sena Kingston DC500R le Kingston DC500M ha ba na mathata a joalo.
Lata Latency Distribution
Joaloka bonase, bahlophisi ba Truesystems ba ile ba tsamaisa Kingston DC500R le Kingston DC500M ka tlhahlobo e nolofalitsoeng No. 13 ea tlhaloso ea SNIA SSS PTS 2.0.1. Kabo ea tieho tlas'a mojaro e ile ea ithutoa ka mokhoa o ikhethileng oa CBW:
Boholo ba thibela:
Phatlalatso ea thepa ho pholletsa le bolumo ea polokelo:
Karo-karolelano ea ho bala le ho ngola: 60/40%.
Ka mor'a ho hlakola ka mokhoa o sireletsehileng le ho kenya pele, bahlahlobi ba ile ba matha metsotsoana e 10 60 ea teko e kholo bakeng sa palo ea khoele ea 1-4 le botebo ba mokoloko oa 1-32. Ho ipapisitsoe le liphetho, ho ile ha hahuoa histogram ea kabo ea boleng ho tloha ho lipotoloho tse tsamaellanang le ts'ebetso e tloaelehileng (IOPS). Bakeng sa li-drive ka bobeli e ile ea finyelloa ka khoele e le 'ngoe e nang le botebo ba 4.
Ka lebaka leo, ho ile ha fumanoa litekanyetso tse latelang:
DC500R: 17949 IOPS ho 594 µs latency
DC500M: 18880 IOPS ho 448 µs.
Kabo ea morao-rao e ile ea hlahlojoa ka thoko bakeng sa ho bala le ho ngola.
fihlela qeto e
Bahlophisi ba Truesystems ba fihletse qeto ea hore ts'ebetso ea liteko ea Kingston DC500R le Kingston DC500M e hlalosoa ka ho hlaka e le ntle. Kingston DC500R e sebetsana hantle haholo le ts'ebetso ea ho bala, 'me e ka khothaletsoa e le lisebelisoa tsa setsebi bakeng sa mesebetsi e tsamaellanang. Bakeng sa meroalo e tsoakiloeng le ha ho hlokahala matla a mangata, Truesystems e khothaletsa Kingston DC500M. Sengoliloeng se boetse se hlokomela litheko tse khahlang bakeng sa mohala o felletseng oa li-drive tsa khoebo tsa Kingston mme oa lumela hore phetoho ho TLC 3D-NAND e hlile e thusitse ho fokotsa theko ntle le ho lahleheloa ke boleng. Litsebi tsa Truesystems le tsona li ratile boemo bo phahameng ba tšehetso ea tekheniki ea Kingston le waranti ea lilemo tse hlano bakeng sa letoto la likoloi tsa DC500.
PS Re u hopotsa hore .
Ho fumana lintlha tse ling mabapi le lihlahisoa tsa Kingston Technology, ka kopo ikopanye .
Source: www.habr.com